I've never heard anyone say they enjoy it. It's just something you have to do if you want to stick with the game, or rather, get a new look for your character that isn't common enough so that you stand out around the market boards.

I guess how well you cope with the grind is how important that is to you. I only got through about 15 CM runs before burning out. Leveled a new class and did CM another 25-30 times before realizing it wasn't worth it. Yeah, it took me that long. I'm a sucker though.