Yeah Payday 2 was cool for a bit but they went too overboard with the DLC plus made some bad balance calls.
To give you an idea of how dlc crazy they got, I own about half of the paid dlc that was out and to celebrate this free give away/upcoming ultimate edition, they had all dlc on sale for 85% off for like the last two weeks. I had a cart with all the dlc i didn't own, and even though they all ranged from 50/70 cents to at most a buck and some change my total still came out to something like 16 dollars

I know at least a handful of key staffers dipped too after the first year or two to start their own dev studio. They used to have one of the writers from Bad Company 2 and one of the designers responsible for BF3/BC2 gunplay.
Biggest problem with the game for me was stealth runs just aren't as fun as the stand offs but they're way more profitable and then they decreased how much money you made...and heists cost to launch.
The 100+ hours i put into it with goons were great tho, no regrats