Honestly a very good mod, it's a mix of Tails' fly, and Sonic's thok, and Mario's triple jump, which are all abilities I'm quite the fan of.
He's got potential to do some wild tricks, and definitely has speedrun potential. A very unpopular mod, but a very good one. I rate it a 10/10.
Just a quick disclaimer, when you begin the game as feels, a lua file relating to the HUD will spit an error out. This seems to have no effect on the character, or HUD, itself, but it might be a bit annoying every time. No points taken off, the mod is 2 years old.
I'd recommend Feels The Rabbit to the entire SRB2 community if I could.
if feels has 100 fans, i am one of them, if there is only one feels fan, it is me, if there is no feels fans... i've left srb2 for whatever reason
tl;dr: feels good character, play it!