Classical Mechanics

Some courses were fun and well designed with good hints for questions hence 3 stars. The problem is too many others were spotty and not well designed. There is a lot of content but it needs more love. Detailed problems below.

Site is designed for mobile so is a pain on desktop. In order to keep course concise for mobile most things are explained using too few words. And when you move onto new questions you lose information from previous and have to scroll way up. As many courses are long this becomes very difficult. The difficulty of questions massively varies and there is not much explanation of what method they expect to use for solving issues in many parts. Some questions had well labelled details and assumptions giving hints as to what to use in lessons, or a hint button, but many did not and just made me feel lost. It should be a requirement that all questions have a hint and assumptions section, and tell you which section form the lesson is used in the next question, as many have so many questions of various difficulty you could feasibly come back the next day and have to refind a bunch of information found in previous questions.

TLDR, i pay for and use this service and am okay with it. But too many lessons were half baked and did not have adequate hints. The site is too focused on mobile use and too many of the questions were too unclear.