Sure it wasn't the greatest film of all time. But it sure as hell wasn't as bad as everybody says it is.
I enjoyed it, with its twists and turns. A lot of well shot scenes. And come on its a gangster movie how could you go wrong.
The ending was good and might have left you wanting a little more but overall I think it will make a good watch on a rainy night. Let me know what you think after watching it because I definitely recommend it. Especially since it is a Scorsese and has Ray Liota in it. The fact that it is based on a true story is a bonus.
You have to keep in mind that this as a movie that you need to watch to appreciate. Don't let the reviews fool you, perhaps people see Martin Scorsese's name and have different expectations.