Honestly I don't understand the lack of nerfs being called on for Operatives especially concealment. They are absolutely monstrous slippery burst demons when the other side lacks roots.
1. Very very hard to kite with double dodge roll
2. extremely strong self heals
3. good cc with a 30 second hardstun and instant mez
4. great burst
plenty more so I don't quite understand the lack of complaints about them. I absolutely devour pretty much anything with my Conc OP besides the upper echelons of OP FOTY.