Peace Walker, terrible camera aside was alright. I'll never get Rah's hate boner for it. It's a tolerable co-op Metal Gear which is what Kojima was going for since Monster Hunter at the time was fuck-huge in Japan and he wanted to make a portable Metal Gear.
I don't really know whats not to get. Why would anyone want a co-op Metal Gear game? And since I don't live in Japan, a co-op PSP game is kind of shit.
The game is shit if you want a normal Metal Gear game.
Terrible level design. Sure it's on the PSP, but Jesus christ can every basic stealth mission basically be completed with you going into a corner and just FPS tranquing people. That's it! That's all I did and there was little reason to not do that....
..Because in the end I wanted the grind to go the path of least resistance. Grinding in a Metal Gear game? What the fuck is that shit. But you have to repat the same boring missions over and over again to futton soldiers so that you can unlock stuff to make the boss battles "tolerable"...
..If they can even be made "tolerable". Jesus are these some of the worst boss battles in Metal Gear Solid. Lacking any character and personality or interesting mechanics. Which is fucking awful in a series known for boss battles like that. They are just boring vehicle battles that all take forever. They aren't hard. Their challenge doesn't come from any skillful play. No they just are not balanced at all and so every boss battle becomes shoot them with missiles, wait for supply drop, repat....
...Of course if you have grinded maybe you'll have the best RPG so that the boss battle takes 15 mins instead of 30 or an hour. Which meant that you just grinded PW's copy and paste missions. I remember when MGS felt like a finely crafted single player game with things like pacing, interesting set pieces, and personality. All gone with PW. Replaced with grindy and boring base management.
So the actual gameplay sucks. I mean it sure did on PSP where trying to aim and do more then one thing was a battle unto itself. On PS3 it just becomes more apparent how brain dead boring and simple the gameplay is because now you can aim without trouble. But was the story good? No, it's just more pointless retcon shit that shits on MGS3.