Those who ordered the full game on PC got the beta a couple of says ago.
I am what you would call an old skool CS player having started playing when the orignal version was in it's beta form then and seeing it grow into the Source version most are familiar with.
Had a few games tonight after a year or two away from CS entirely and I have to say I love the new update. The graphics are still below average for this day and age but are certainly shinier and feel chunkier. Lots of updated textures and character models. The netcode seems solid still and the whole game is still CS as we know and love.
I suppose what I really enjoyed though were the updates of the old maps on there. Managed to play Train, Nuke and Aztec for the first time in ages as well as Dust 1&2 and Inferno.
Not much else to say. It's CS, it's bloody brilliant and tough for the newbie and I love it again.