When I watched this, I was preeetty new to anime, and I enjoyed it. If you're new to anime, watch this, but don't expect to find the same thing in other anime. The concept is good, the superpowers are fun, but almost everything else isn't managed as well. The animation style is pretty nice, not too shabby. Character development leave much to be desired, as a lot of background is left out and it's not very easy to get attached to most of the characters.
If you're new and still don't have too much of an idea what sort of series you like particularly, and haven't really developed standards I guess, I recommend this anime.