Rogue fundamentally is a good class. We do great in DPS in PvE and have tons of Control capability in PvP.
With the recent 5.2 patch we've gained a good deal of mobility and burst wrapped into one talent (Cloak and Dagger)
Our durability in PvP remains just good enough to be competitive.
We scale with gear a little too tightly (just like Warriors) and the combo point / energy system is a bit sluggish imo.
Still, I enjoy my rogue very much