I've seen the speedy with the strap - I didn't like it. If there was a way to attach straps on the ends of the bag (which isn't possible at all), I think it would look a lot better and would distribute the weight of the bag well. But because this isn't possible...I don't own the speedy.
strap looks (excuse the political incorrectness) very old lady - ish. (not in that classic/classy way some of the ladies on this board know how to do it)