Halo CE is only bad if you play on bad maps. I don't mind the load time, and several maps are quite good. Just like in Combat Evolved, Some maps are better for certain gametypes than others, so it's really up to you as to which maps to download and play.
If you choose the right servers, you'll have fun. I've always wanted to be an Air Force pilot (but I can't since my eyesight is bad), so I fly pelicans, longswords, etc. which you can't pilot in Combat Evolved.