It's good, but it gets boring very quickly like Alesana mentioned. If you do end up getting it, make sure you have friends who you'll be able to communicate and play with.
CS:GO is definitely a must if you like shooters. You can also pick up on League of Legends(MOBA), but be aware it does take away lots of your time. If you have a good/decent rig, I would also recommend getting Fallout 4 or Battlefield.
I've been recently thinking about buying a 144hz/120hz monitor due to the fact that the screen tearing on some games has gotten pretty bad. Games such as cs:go are unplayable with V-sync, but before I invest in a new monitor, I'd like to know your personal opinions and experiences with them.