A bunch of people in the year above me pledged their allegiance to RR. They did well all around. During MS2, I just couldn't do it. The audios are time consuming and the book itself was just so DENSE. I stuck to BRS Patho. It worked well for me, a great companion to 'Papa Robbins' and FA.
However, now I'm neck deep in board review and RR is just unparalleled. If I get a patho question on UW that isn't in FA (or where it should be in FA), RR doesn't fail! I find it best to review it fast after doing a bunch of UW questions; good system recap plus now you can really remember the 'obscure' details because you came across them once in UW.
So yeah- great review! If you find yourself tripping over it or spending a great deal of time reading RR, go back to FA and get your basic outline down in your head. It's easy to dive into RR and never come back... dense and scary. Have a plan.