Finished last night,71 hours in...the ending was a huge letdown for me,because it was way too hard,compared to the rest of the game for one,I didn`t like the fact that everything got harder if you didn`t have some of the skills maxed out and that having done all the quest to have the Boomers on my side let`s say,added nothing to the ending...still,everything else was awesome and I might start out another playthrough,going melee or whatever for awhile and try and get some achievements I missed(only got about 400 points).
Played on the 360 and had 3 freezes,that`s it,in all that time.