I'm a sucker for tanking games, so I love the concept, but the tank itself is wildly uncontrollable (simply stopping too quickly is enough to put it into a 360 spin) and appears to have very little weight, the camera best I can tell is to glued to the turret (so if the tank goes into a spin - which it will - so too does the camera; it gets pretty nauseating) and the AI seems... well, braindead. They spin around in circles and sometimes remember to shoot you. Also not clear is the mission goal, leaving me driving around Hakurei Shrine 1 in circles trying to figure out what I was meant to do exactly until I eventually gave up and quit. It can be hard to tell a dead tank from a live one too; the only real observable difference is that the former doesn't spin around in circles constantly.
On the other hand, Cirno in a chibitank getting airtime and mad drifts is pretty spectacular to watch. The map is well made (disappointed you can't ring the bells by shooting them, but can't complain)
Audio works, though I couldn't tell if the 'donk' sound from hitting something was inferring a good hit or a shot bounce. Did like the music though.
No Story/Writing I encountered; similarly the LGBT theme appeared to be absent.
Challenge existed mostly in trying to drive the tank in any direction not directly forwards, versus actually shooting anything / avoiding being shot.
All in all, seems to have been a victim of overambition. Rather than crew choices and multiple maps, more time tightening up the controls and gameplay might have been wise.
EDIT: you also lack a pause screen / way to quit the game if you're not playing it windowed. Little important that.