I really wanted to like it, (I loved the original movie) but the show left me strangely uninvolved. My wife and I were talking about it; certainly the fact that our children are grown could be contributing factor, but I don't know. Maybe the casting? Peter Krause is excellent, but I may not be ready to identify him with yet ANOTHER character (number four, I believe.)
Also, the writing seemed a little forced and contrived. My extended family would have never dropped everything to watch my son play a little league game. The other kids all seemed sullen and bratty, then redeem themselves. Too pat. The irresponsible brother forced to grow up. Really? Modern Family does a much better job.