It was rated 7.7 (out of 10) by users at Fred Miranda. I don't have the lens, but here's a link to the reviews by owners of it at FM.http://www.fredmiranda.com/reviews/show ... t=2&page=2
Personally, I think f/2.8 is too slow for a prime unless you're getting into the telephoto area. I love primes and shoot with them the majority of the time, but most of mine are fast primes. The only f/2.8 I have is a 200mm.