Is Varsity Tutors a good study tool?

I’m taking the AP Physics 1 exam in a couple weeks and quite honestly I’m pretty much screwed. My teacher gave us a lot of resources and I’ve been looking at things like Flipping Physics and Khan Academy but does anyone know how good Varsity Tutors is? I’ve been scrolling through their website and I took a diagnostic test but most of the questions seemed more calculation based as opposed to conceptual.