One bug worth noting for you; Hunter Pets gain no exp while in a group, so they'll get no levels, though you will...
Of course, this doesn't really matter if your pet is already level 70, I'm assuming.
The thing about instances in my level range is that I expect that during a run they'll run out of their usefulness. Case in point: if I were to run UD Strat and BRS now (at level 57) I may be happy to get the Beaststalker's set pieces, but of course Beastmaster will be soon within reach and then Beast Lord. I guess I'm complaining about nothing, since I'm eventually going to reach a limit with how far I can go.