Last year was the first year it was available. It was pretty "new" and had some obvious problems, but almost all of them have been addressed from what I've seen so far.
This group I play with are also huge "gamers" and apparently you can play the EA Sports Football game for the Xbox with your fantasy team
against anyone else (of course, it's most fun with other people within your league). Apparently it's a ton of fun.
Personally I'm still pretty hooked on Sportsline although I'm quite aware that for the money paid it should be much most stable and probably have writers that have fantasy skill beyond grade school.