After tanking through a few OPs I can say the difference for tanking is much improved. The rotation for the DR buff is kind of annoying to keep up in fights where the target moves, or has different stages, but the spikiness is pretty much gone. The damage while tanking is very much like any other class now: any deaths can be attributed to other factors, not spikiness (e.g. missing an interrupt on corrupter during the Draxus fight kills everyone just the same).
Also, in my further parse testing I'm still about 2-3% ahead of infiltration DPS with the CS buff, and can not see any other difference, still lagging way behind other DPS classes by a significant amount.
Good thing I can tank again, I had pretty much given up on it with 2.0 changes. Guess I'll work on my sniper for DPS instead...