I'm using Kaplan High Yield for the Step 2 (I used the High Yield course for Step 1 as well). So far I haven't hit the questions because I'm finishing off a previous subscription to USMLE Rx, but I've been watching the videos.
For me, I'm happy with the content. The videos are much better than their Step 1 videos in my opinion (relevant info if you didn't like the Step 1 course) because they're taught mostly by Dr. Fischer, at least so far. I've done about half of it and I'm impressed. Of course they're still fairly dry and the presentation is spartan (ie you see the powerpoint slides, few pictures, nothing super interesting) but they do a good job of hitting the important details on what to do for a certain condition.
The thing I've benefited most from is learning what diagnostic tests to do and in what order, because I've had a hard time finding good explanations (Cecil's has good charts and algorithms, but it's very time consuming and will likely not be feasible to get through the relevant sections in time).
I'm using this course along with FA for the Step 2 because I actually prefer the format to the one in MTB (still possible to annotate and follow along, but takes a little more effort).
Downsides: a little pricey (I did use the AMA member discount though), brushes over some topics like EKG interpretation, some sections are weak on pathophysiology (not sure if this is intentional as it's not as important in Step 2, or if it's an oversight). For example in the section of anemia of chronic disease nothing was said about the TIBC or hepcidin levels. Again, minor things. Overall I'm content with it because the main thing I want to get out of it is a good grasp of the fundamentals, so I can build upon it with UWorld, COMbank, and reading up on my weak subjects in textbooks.