Being playing CS since early 2000's. To be honest there is nothing that can replace the fun we used to have on CS 1.6 (no emphasis on graphics, just playing the game) Nevertheless CSGO came second in my tier list as a very good and interesting game to play despite being abandoned by the devs for the last couple of years.
CS2.... well the skins are awesome .... and that is it (not to mention the skins' look gets changed every second week). 63% of the previous maps are removed and have not been replaced. There are no new cases nor new operations.
Cheaters problem has become the worst part of this game. There are cheaters almost everytime I play and it is players mainly from Russia and Turkey (hope those 2 countries have their own servers anytime soon so they can leave the rest of Europe alone). I have also noticed cheaters have expensive inventory so 10k USD+. This brings to mind that they even do not fear getting banned.
Overall if Valve do not do something to level up the game soon CS2 will continue losing players.