I've only gotten in about an hour and a half of RS2014 so far, but wow, has it improved! I can already tell that it's going to help me improve many of my skills, with the most immediate probably being shifting. It's just so much easier to see which four frets your fingers should be on now, and I'm already noticing myself moving my hand to that position pretty naturally.
Since everyone else is posting pics of their instruments, I might as well join the party.
The left-most one is my "real" guitar. ESP M100-FM. I got it about 4 months ago when I started to get a bit more serious.
The middle one is the Rock Band Strat that I got originally. I use it for the alternate tunings, since the ESP has a Floyd Rose. Eventually, I'll pick up another fixed-bridge guitar that's better.
The one on the right is my Ibanez electric acoustic. I haven't tried using it in game yet, and mostly use it for practicing on the couch while my wife is using the PC.