Nothing wrong with Felt. A buddy of mine has an F4, and it's a nice bike. For the same price point, most other bikes were all 105 or less, and he's got almost all ultegra with some 105 thrown in. Great bang for the buck, and a nice looking bike as well.

Not to knock the big guys like Giant, Trek, Cannondale, and/or Specialized, but in my opinion it's also fun to have a bike that not EVERYBODY is riding. On most big group rides, you can't blow a snot rocket without hitting a Giant or Trek, but Felt is one of those bikes that other riders want to check out. That won't necessarily make you any faster, but it's nice to have people admiring your machine.

My favorite bike: my bike. Fits me and it makes me happy. If Felt can fit that bill for you, it's a great option.