Finally watched this on itunes. I really enjoyed it, though I was disappointed that the 70s sentinels were taken out so easily - I really liked their design and hoped to see them kick a lot of ass.
One thing that I was really pleased by (even though it was extremely minor) was when Logan wakes up in the past and is shot by the goons, he actually reacted in a realistic way - in many of the x-films, Wolverine just shrugs off the wounds as they happen, despite his healing factor not limiting any of the pain. But in that scene, he was very obviously in a lot of pain when shot. I think handling his injuries like that makes the actual healing more dramatic.