I've been with Verizon for 15 years but I have TV and internet with AT&T and they are offering a pretty solid deal to move my cell phones to them. I'd be saving a little over $200 a month and all 4 would be unlimited data (only 1 of the 4 is unlimited now). How is AT&T's service overall these days? $200 is a decent chunk a month but I don't want to do it if their service and customer service blows.