i haven't done QBank, but i just finished UW in full. i even did path twice. i thought the bank was good, and i learned a ton and became very comfortable doing questions and thinking with the information provided in the question stems. its good training. however, it seemed to me that UW did not cover very much information. there are many concepts tested repeatedly, and in challenging ways, but just as many things completely ommitted from the bank. for instance, there were very few Q's on cholesterol biochemistry, almost no mol bio, and behavioral is very weak. i understand however that it can't have everything. i have yet to take step 1 (tomorrow - yikes!), so maybe i'll feel differently after i finish the exam. but again, UW seemed to me a great learning tool, but not the end-all be-all . . .