Overall helpful for practicing

Strengths:

- helps mimic an exam like environment, focus better.
- exercises with different levels, adaptive and non-adaptive

Would make the product better:

It would be better if it could be sorted to only select questions from official sources or that have Official Explanation

Before Forum Quiz, if I want to solve questions, I need to filter for questions on the question bank and then open multiple URLs. Its hard to keep track of things (number, type, level, record of questions done) in this way, then come to Forum quiz. Forum quiz collects all the questions in gmat club forum, simulates the real exam with timer and saves the questions in error log. It is very easy to do many exercises with different levels (adaptive and non-adaptive), convenient for recording errors and reviewing later. Even though, there are still some inconveniences, such as not being able to sort the official source, the way the DI question set is displayed does not reflect real time spent; Forum Quiz is still an useful tool for daily practice.