I'm a BJJ newbie and I love it. I should be able to go for my green belt in one of the hardest schools in the country to progress, but I keep having nagging crap like colds or rotator cuff crap keeping me from fully training. I had the big break when both my kidneys had different problems at the same time. Took me awhile, but I'm back.
Still, I love BJJ. It's fun, mentally challenging, physically demanding and emotionally fulfilling.