To be honest I didn't think I was going to like this because I haven't read a 'Harry has a twin and they get separated' story before I like but this was so totally different and I just loved it.
I really liked the relationship between Harry and Severus and how they interacted and teased each other, so natural and Severus let himself feel for a 'Potter' again which I think was very brave though I know he didn't really think of Harry as a 'Potter'.
The ending couldn't have been better I was dying to punch Michael and dare I say James as well so Harry doing that was just brilliant.
I so totally loved this story that I'm going to go read it again, it was funny, charming and most of all Harry vindicated Severus by punching Michael :D