Is this game any good? I remember seeing a lot of YouTube videos pop up with how much needs to be changed ect. Obviously the landscape is different now since genshin but 30 mill to 10/11 for genshin/star rail is a lot.
Early betas were rough. Lots of translation issues, font issues, story pacing, artstyle was wonky, gameplay loop was frustrating...Luckily they really listened and reworked a lot of systems. It's actually in a good place right now.
Where it differentiates itself is the combat and echo system.
Combat is faster and more "skill" based than something like Genshin or Tower of Fantasy. I'm not going to go out and say that's it's DMC, and since it's a gacha game there will always be power discrepancies, but it's from the PGR team and is a bit more twitch.
The echo system has been reworked quite often, but what it boils down to is that instead of artifacts or gear, like the Genshin/Honkai, you farm open world bosses and enemies for their souls, called echoes, free of a traditional energy system. Each time you kill an enemy, it has a chance to drop an echo. This echo is just like Genshin's artifact system: random main stat and substats. However, every soul has an active ability if it's slotted into your main echo slot. There is no specific slot restriction, you're free to use whatever echo in whatever slot, with the only limiting factor being the cost and which one you want to be your main echo. You have 12 "cost", and boss echoes cost 4, elites cost 3, normals cost 1. Enemies respawn daily, and you can co-op hop to get more chances at drops if you want to go full esports. Then you upgrade and get random substats ala Genshin/HSR.
You use "resin" in Wuwa to get the upgrade material. The whole echo system is structurally like Genshin/HSR, but inverted in the sense that you don't generally use your "resin" to farm "artifacts".
There's also a mastery system with echoes: the more you get, you increase your mastery which has numerous benefit. A bit like a Pokemon where you can "collect" them all.