After watching 11 episodes of this series I can say. I LOVE IT. The exaggerations of the characters in the show are thrilling. It's about time a sports manga creator tries to do something different. To sum up many peoples complained they just wanted blue lock to be haikyuu but football/soccer. Personally, I find that boring it would've never peaked anyone's interest if it was just haikyuu v2. There are many soccer anime out there already that are like haikyuu but soccer.
What I love about Blue Lock is the selflessness of wanting to be the best, the Mamba mentality. The shooting, dribbling, and the character's development during the games are very thrilling also.
What I have to say is watch at LEAST watch until episode 6 until you critique it. A lot of things people complain about are literally debunked from watching the show. For instance, people say that the characters have no common sense which is an insult to the characters I guess. When in the first episode ego tells everyone to "Abandon all common sense".
If you don't like the show it's fine it is not for everyone but I recommend it.