I would say its a vaaery niche phone. Compared to g8x it also has more ram and 5g so it has better longevity , I also kinda feel the way you can hold it with one hand when you hold the vertical screen while horizontal one is opened at top is much more ergonomic to hold than g8x , also gimbal mode is fun ( g8x has its advantages with more practical design maybe and quad dac etc ).
I think its amazing phone an eye catcher wherever you swiverl it open and a bargain at this price. I also think its one of the last few proper fun android phones, a bit like t mobile sidekicks of past which collectors still buy.
Having said all that , what I would be worried about if such a phone has a proper case or protection. I think few cases were launched and you might want to look into that because without a way to protect it well ( which seems a bit difficult ) it might not be the best buy. So i would research all that but i fthere a re options to protect it from drops etc well It could be a good buy.