First, I really enjoyed playing this game.  The controls were fine, and I tend to like sneaking around killing bad guys, so the genre was appealing. I haven't played any of the prior Splinter Cell titles, but the flash-back storyline filled in the gaps and told me a little about Sam's history.  The downside to the game was the length.  There are a number of missions, but once I got a hang of the game, it was pretty easy.  I basically completed the entire thing in one weekend, which really disappointed me.  Sure, a few of the missions I had to do several times to complete, but I was disappointed when I was finished.  I really wanted more.  Compared with the length of time I played the two PSP SOCOM titles, this one came up short.  A great game, I just wish there was more of it!