The Trials map - due to being surrounded by walls - offers a gameplay that we have never had before. There now is the opportunity to wallrun, which makes rushes alot faster, as less blocks are needed. But playing on it also feels kind of oppressive, because this map does not offer alot mobility for the players. Expecially for fights when outnumbered, this map makes it harder to escape than other maps.
I have heard alot criticism about the looks of the Trials map, and regarding on it not being as aesthetic as other maps, i can fully understand those opinions. But for this we have to keep in mind that we have a really small number of cubecraft designers and they had to create 9 seperate eggwars maps in not even a year. The work is impressing.
Personally i would not rate Trials the best map we currently have, but it has to be mentioned that there are maps that i personally like less. I know everyone has their own opinion on this so we gotta accept both, criticism and praise.