I'm halfway through the new season. It's still enjoyable and it's still featuring one of the best ensembles on TV. At the same time, I think some of the developments in the plot this season are stretching the suspension of disbelief to its very breaking point.
Finished with season three. I thought it was still enjoyable but mostly due to the cast. I think the overarching plot was the least interesting of the three seasons.
They had a new showrunner this season and it showed. Especially in the lack of depth in the cons. I also think that they were a bit screwed by Ricky Jay's sudden death. I am pretty sure they had a lot more planned for the character and they had to adjust the last few episodes of the season. I suspect the reveal was originally going to be that he was Cy Rubinek all along.