Absolutely not recommendable because of the insane ammount of hackers.

Today i dropped From Global Elite to supreme and lost 3 games on SMFC against Rage Hacking kids. In one game we were 8:4 ahead and 1 opponent left, joined back 3 rounds later jsut to announce he quickly downloaded a hack. So after he ragecarried the remaining rounds getting 11 MVPs we obviously lost.

Don't get me wrong there are some strong players in this game who hit insane shots but with my almost 6 k hours of Counterstrike experience i can tell you that at least 5/7 matches have one hacker +, not even counting the insane amount of players using some kind of radar hack.

In fact Valve doesn't even care. Do they try getting rid of the Hacker Problem? No, not really. Instead they keep adding skins and cases you have to pay for.
Overwatch function seemed nice in the early state, but watching an overwatch session, you can't hear the ingame voice chat, which pretty much makes it useless. How do you want to hear if some1 keeps playing music ingame, uses a microphone of 1937 or keeps flaming? Or a hacker calling ingame? No, all you can see is a Scoreboard and the PoV of the Suspect, of course you are not able to switch the teammates.

Counterstrike Anti-Cheat is so damn useless, a friend with 1 year programming experience was able to build a hack, which was undetected for over 2 years.

Another problem ist the community. Most players below LEM are queueing with 2+ mates only speaking their own explicit language. So why the hell is there no "Team-Language" Option ingame to fix these kind of things?

All in all CS-GO is a nice skill-based shooter with high potential, being ruined by a company only interested in milking the cow and a highly toxic community. To enjoy this game you would actually need to buy ESEA or just not play any kind of competative matches, which would make cs go kind of senseless.

Cheers