I was expecting a more modern version of CSGO without hitbox bugs, more dynamic and incorporating the gameplay innovations we've seen recently (for example, Apex's ping and communication system was amazing), with what CSGO lacks : friendly user lobby, space for team and clans, characters with personnality and possible customization, clear and rewarding system, game made for competition, a real anticheat, etc.
I had a game which looks like it's 20 years old, pathetic chara design, a client even more confusing and empty than CS, a gameplay even more slow-paced. The characters are slow and heavy, the rythm is boring, the spells are imbalanced and competition-breaking, the environment, ranking, etc was absent, the anticheat was bypassed in 5 minutes... I had no fun playing the game despite being basically smurfing because of my CS experience.
And I'm not usually that harsh, I had tons of fun playing Apex, PUBG or LoL for example.