I have neither watched GGS1 nor is this e-sports thing my genre, but I decided to give this a try since it's Hu YiTian as ML.
..and I must say I was surprised! Though I didn't expect too much, something has caught me within the first 10 Eps, so I decided to keep watching.

First of all, the production looks quite expensive! The outfits and the styling in general unfortunately didn't do it for me, but the locations were great.
I LOVED the bromance of K&K team! I enjoyed every little scene of them, they never failed to make me laugh. Aren't they the kind of friends everyone would like to have? :)
Also pleasantly surprised with Grunt. Wasn't too sure about his character first, usually in real life I hate this too overconfident type of person, but somehow, something in this drama made him pretty likeable to me, which was definitely a plus.
Speaking of him, there was this thing about his relationship with Ai Jing. I LOVED their chemistry, they even had better chemistry than the first couple to me, and both pretty faces to look at... but something really annoyed me. Ai Jing was the oldest of them all, but always acted the most childish when it comes to her and Grunt. So much unnecessary drama, but since there was basically no drama between the first couple, it was okay I guess.
.. which would've been my next point. I'm still not sure about the first couple. There was no forced, unnecessary drama, which made it quite relaxing to watch on the first hand, but on the other, at some point, it starts to get boring...
I had a hard time trying to feel their chemistry. I can't even explain it, because to me, the acting was really on point, but.. maybe because the whole story was just a little too unreal? Yes, of course, it's a drama, but honestly, their love story just seemed too perfect to me, so at some point, it started to get a bit cheesy. But contrary to their kisses.. the FL seemed like a wall.. it seemed so emotionless, especially compared to dramas like "my little happiness" or "love is sweet".

So, all in all, this was basically a mix of funny and cute scenes, with a (to me) decent amount of robot combat scenes.
Give it a try if you'd like to have a chilled, pleasant journey of watching! And no, you don't need to watch GGS first, and maybe, after what I've read, it's even better since this will leave you a better impression then haha.
(But maybe I'll watch it in the future tho. The actress of Tong Nian is really beautiful :))