I absolutely adored this game when it came out, spending hundreds of hours on it, but it hasn't been aging well. The base gameplay is kind of boring and the vanilla maps are mostly terrible compared to the custom maps, but the only active servers now are M.U.G.E.N.-tier clusterfucks.
I am well beyond ready to have a clean slate with Dr. Robotnik's Ring Racers, which I hope will be worthy of 5 stars.