Bought this ages ago, and am on my second attempt to complete the game, but this game (even with patches) still has some massive technical defects.
I've invested over 70 hours total in this game only to get to a point where (due to my game saves becoming corrupted - a known issue with this game on all platforms), I'm unable to complete a mission. Result? Delete all game content from the PS3, and restart everything from scratch.
I enjoy playing the game, and gasp sometimes at the level of realism in the environments and even the AI (enemies talk to each other about you, which changes as you become a more reputable Merc) is very good. But I still can't get over some of the technical issues (heath bar not regenerating, game saves, no auto-save when missions are completed).
A bummer to have to start again, but it is giving me the opportunity to do everything right, and subvert all the missions/do all the side quests...