I opted to get a 14 Mustang since they are offering amazing deals (although mine was nowhere near that good of a deal, I got about 5k off MSRP) because I don't like to get the first model year, however my brother has an 05 Mustang and hasn't had any issues. Also, not sure I really like the styling of the 2015's. If I decide I want one, I'll go for a 2016 or 17, once they works out the kinks.
2014 Jeep Grand Cherokee SRT
SOLD -- 2014 Base GT 6 Speed Manual