It was the first Halo I owned.
And I tell you, it gave me a powerful feeling, one I had never experienced whilst playing any other video games.
The campaign was amazing, it really made me FEEL what was going on.
This game is a gem.
I hosted lobbies for the PC version a while ago.
Now I hop through hacked versions for the next coolest thing.
But yeah, Halo 1 is cool. Campaign was definitely fun, especially with having to fight the Flood and the Covenant alone.
I agree, it DID have a cool and unique feel to it.