I haven't enjoyed an Adam Sandler movie since Happy Gilmore, although that's not really why Pixels doesn't appeal to me. I mean, c'mon, they're trying to take a concept from a Futurama segment, that even some of the funniest writers in television felt only worked in the context of a 10-minute short, and extend it into a full length feature? Really?!
If you don't have a good frame story and interesting characters built around the gimmick, like Scott Pilgrim did for example, it's just not going to work well over an hour and a half to two hour run time. There's no guarantee that they haven't written genuinely interestIng characters, but... well, I'm not enthusiastic about its chances.
I'll probably catch it on Netflix someday just to confirm whether my suspicions were true or not. The involvement of Chris Columbus and Peter Dinklage make it hard to completely turn a blind eye.