Kind of weird to review Metal Gear Solid 1, 2, and 3 in a single review, but this PS2 collection was how I experienced them for the first time. I remember being hyped for MGS4 and playing through these 3 for the first time, so I would not be lost in MGS4. Boy am I glad I did, as the story in the MGS series is complex, convoluted, and very entertaining.
MGS1- Fantastic game, especially for its time back on the PS1. A game that was ahead of its time with the crazy interesting story, character interactions, easter eggs, cinematic scenes, the gameplay (All of the items you could use to play through the game different ways). 5 out of 5 experience for sure.
MGS2- I recall being very disappointed that I had to play as a new character instead of Solid Snake throughout the whole game, but once I put that behind me I enjoyed this game as well. I think MGS1 is a better game, but this game is more of the same as far as the gameplay being improved in various ways, more fun character interactions, engaging story, easter eggs, and cool cinematic scenes. I would say a 5 out of 5 too, but I would probably give it a 4 out of 5 back when I played it due to me being too butthurt over not being able to play as Solid Snake for the whole game lol.
MGS3- Back when I played this game, I disliked the more realistic take it took, and it taking part in the past, as I was more interested in what happened after MGS2, but again, once I put that behind me and just played through the game, it yet again captivated me with the same great stuff the series was known for. Engaging convoluted story, further improvements on the gameplay from what MGS2 offered, more great character interactions, easter eggs again, and more that I cannot recall. A 5 out of 5 star experience.

The Metal Gear Solid series as a whole is just a big blast (At least the majority of the series). It's at times like a long Spy espionage movie experience crammed into video games.