28,742Leland Reviews

Erfun was referred by a former colleague who attended Kellog. I worked with Erfun for 8 weeks after scoring a 590 on my most recent exam at the time. I had scored a 710 6 years prior but had to retake the test as the score was now expired. It was challenging to get back into studying mode being 6 years out of undergrad and having a challenging work schedule. I had used the Princeton Review course but just wasn't getting beyond 650 on practice exams and was falling short on time as the b-school application deadlines were coming up. Erfun was amazing to work with. He takes a rigorous approach to putting together a tailored study plan focused on your weak areas and provides thoughtful guidance on when to schedule your next exam. In between sessions I always had content to go through and never felt lost on what to do next. During our sessions, Erfun would provide invaluable insight into approaching questions in a methodical manner that would not only save a ton of time, but also enable you to solve harder and harder questions. As the weeks went on I was making huge strides scoring in the low 700's on practice exams. However, I was having difficulties performing on the real exam. This is where Erfun's help truly made the difference. He helped me combat the testing anxiety by giving me tips on test day rituals, section ordering, break management, and just overall positive reinforcement. All the work we had done on the technical side and the approach to the exam ultimately came together, resulting in a 780 score! While Erfun's quant lessons were top notch, I want to particularly highlight his incredible verbal lessons. As a non-native English speaker from Western Europe, I struggled most with verbal before working with Erfun. Through dedicated reading comprehension and sentence correction sessions I was able to score a perfect 51 verbal score on my final test. I would recommend Erfun's services to anyone who is looking to either break the 700 range or further differentiate their b-school application through a 99th percentile GMAT score.

I came to Sage as an engineer fresh out of undergrad who wanted to get in the 700s (highest I had scored to that point was 680), and left Sage with a fantastic GMAT score (760). First of all, I actually enjoyed going to my GMAT prep sessions. Insane, I know, but Sage made it an enjoyable, welcoming place to learn. He didn't take himself too seriously, but still was able to drive home critical pieces of information. I cannot recommend him enough as a person, and that is before anything to do with his effectiveness as a tutor. He was well-versed in both the verbal and math sections (I needed more help on the former). Don't worry about useless busy work either, he picks relevant problems / topics to ensure you do your best. In short, I cannot recommend Sage enough for any GMAT services - great guy and great tutor!!

Sage was a phenomenal tutor over the course of six weeks as I prepared to take the GMAT. He prepared efficient lessons that really focused on the key strategies needed to learn how to approach the problems on the exam quickly and accurately. He also varied how he approached the same problems to ensure each strategy clicked. I also appreciated that he made sure to not move on to another concept until he was sure I had a strong grasp of the current lesson. Furthermore, he always invited questions which made me feel comfortable while I was learning. Beyond our specific tutoring sessions, Sage always made himself available via email which I found to be tremendously valuable. After I took and reviewed practice tests on my own time, I sometimes asked Sage questions via email about solutions I didn't quite understand, and he always responded promptly. By the end of our tutoring engagement, I felt fully prepared to take the exam and in the end, was thrilled with my score of 750. I was very grateful for all the strategies and content I learned from Sage, and also his passion for my learning.

For anyone who has a very weak foundation in math, and also wants a good score on the GMAT, Marie did a great job laying out the material in an understandable way that makes even the most complicated questions dissectible. While researching for a GMAT prep course, I was overwhelmed with how many options there were to choose from. Marie has the skills to keep you motivated thus helping you reach your true potential and improve your GMAT scores. Remember that GMAT tutor won’t help much without your effort outside of sessions. The workload is not light and Marie was very upfront in telling me that this is going to involve a lot of practice. She was extremely knowledgeable, professional, and helpful throughout the process.

Marie was critical in helping me get ready for the GMAT. I worked with Marie for a little over two months and she helped me improve my score from a 620 on my first practice test to a 760 on the official test! I couldn't have done it without her as she helped me organize my prep, understand how to tackle difficult concepts efficiently, and believe I could succeed. It really felt like Marie was rooting for me and was on my team.

She is very efficient and smart. She knows how to step by step to make sure u familiar with it. I love her teaching style

Ryna was wonderful! She took the time to understand the areas that would be most helpful for our student to prepare for the SAT and customized the lessons. It gave our daughter confidence and reduced her anxiety leading up to the exam, and boosted her test score by 100 points! Thank you, Ryna!

I had Ryna as a math tutor when I was studying for the GRE this year. Ryna is intelligent, kind, patient and a skilled teacher. She created a safe and enjoyable space with her warm presence that made learning easy. I highly recommend working with her.

Marie was instrumental to hitting my goals. For context, my first practice test came in at a 155Q/158V, and Marie was able to get me all the way up to 166Q/165V! We spent six months working together, and Marie was incredibly patient and encouraging even when I felt like I wasn't getting better. She always approached our lessons and practice in a very structured manner and provided me exact homework to do each week. If you are looking for a tutor who can help you on the GRE, Marie is the best.

Very accessible explanation of combinations & permutations