It's not fun. At least, most people I've played with on there agree it's not fun.
Imagine old doom bots on steroids and at the end you have to fight two barons while fighting 5 doom bots...on easy. Only way to win is waveclear and range -- Cait, Lux, and Jihn are doing pretty well. Riot took something cool and made it a miserable experience.
Play it once or twice, but I wouldn't waste much time on it