I was in the same boat as you a few months ago, never played a Metal Gear Solid game in my life. That was until I decided to pick up MGS 4 and see what the deal was with the series. After playing around 1-2 hours of MGS 4 I realized I couldn't play anymore, I needed to pick up the HD collection to really enjoy and understand everything, and nothing felt more satisfying then playing 2, 3, Peace Walker just for the epic conclusion in MGS 4.
Gameplay wise I thought it was great and graphically the games look good in glorious HD.
If you do plan on getting into the series go into it with the intent to play 1 and 4 somehow, I can't speak for MGS 1 yet but MGS 4 was amazing.







