It's AWESOME!! Well, I kinda disabled my account a while back thought, but if you are getting a tumblr then I recommend "Randomsexfacts" (just a recommendation), you'll laugh your ass off on that blog.
I think you should. I love Tumblr! I have a Tumblr blog and haven't had any problems. Go check it out at [link] lots of artist's have one like Lara Jade the fashion photographer. Its so easy to follow the blogs you like as well. So go check it out and let me know if you decide to join.