That captures my feelings about it perfectly. It was well done, but... yeah, just a little anti-climatic. They could have maybe made it a 2-hour and added a little more tension and drama.
That should have been a 2 hour ending... they did wrap things up pretty good though, in one episode.
I would like to have seen the Schwarz’s get more payback - if it was not for them, Walt would never have needed to go bad.