Yea, Pathoma was good enough. The questions are definitely tougher than the sample ones on the NBME website though.
If you've gone through Pathoma once or twice, even with questions you don't know the answer to, you can generally reason your way through it. If you've also been doing the blue margins/blue boxes from RR, I think you'll be golden. There are occasional WTF questions though that I think even people who read Robbins might not have known -- luckily, there were only 1 or 2 of these types of questions on my exam.