iTheory - anyone used it?

Hello,

I am about to start studying for the theory test and I found this site https://auto.itheorie.ch/en

I was wondering if anyone has any experience with it? If not, which one would you recommmend?

I have used “https://web.edriver.ch” and was quite useful to both learn and clear the exam.
Practice exams these guys have got are good ones!