The sleeves are a bit shorter defiantly. I'm going to get my new Paul Smith trousers hemmed in this weekend, so I'll take the jacket in to get lengthened.
I can move comfortably in it and it hugs the body the way it should. Here's a shitty pic of the back, it's not perfect, but it has a nice curve.
It's not bad for a old blazer.
Edit: that looks awesome, eazy. Very nice!
Cover your ass: http://mostexerent.tumblr.com/post/11058463975/cover-your-ass-there-is-a-common-misconception