A lof of the complaints I see about Scal seem to be from the pre/post game stuff and how he interacts with Abby, and since I'm out of market, I never get to see him on those, so I can't comment there.
But personally I think he's great doing games. I like his personality, seems to be able to laugh at himself most of the time. Only rarely do I ever think he sounds like his opinion is superior as a former NBA player. Usually sounds like he's having fun.
Also feel like he's usually right on the nose when calling out the strategy. Out of a timeout, end of quarter plays, etc. Gorman asks what's Brad/other head coach is going to do, and Scal usually calls it before it happens. I'm usually very impressed with that.
So for the games, I think Scal is great. Though I wonder if I'm turning into the minority, because I've seen many people calling him out this year.
Another side note: late last year I felt Gorman was turning into Marv Albert, calling out the wrong score/lead/deficit, mixing up the players, etc. often enough that it was noticeable. I know a few people here noticed it too. But I haven't noticed any of those same problems this year.