While a vast improvement vs. the previous rank 'lumping', one has to ask why R1, R20, R40. Where oh where is R30 lol? Since I primarily use these to rank up my lesser crafts of weaver and leather, with both being 30+, I'm essentially right back in the same predicament of being offered nothing but 20 leves, which at this point, aren't worth the effort. I hope we get further delineation in the next patch.
Also, I didn't see any quests being offered in the R40 category.