I wanted to like it because, you know, fishing cats and fishing idle games can be fun.
But this one isn't. The timer for how long it takes to catch fish keeps going up; I'm already at an hour to wait for my next catch, and I am not going to wait an hour.
The levelling up of the cat isn't enjoyable either; it's slow and tedious. Indeed, you can trade in cats to get an extra point in levels up, but... It still sucks.
Apparently, one achievement is nearly impossible to achieve, and having all achievements isn't everything, but it would've been nice just for the sake of it.
I couldn't care less for even more inventory clutter.
There are far more enjoyable fishing and/or idle games out there than this one. And the intention may have been good, but that's where it kind of stops. It's a hard pass for me; it was uninstalled and never to be seen again.

90,000+ hours on average to get the legendary cat achievement, not even the developer has gotten one since it's a 0.0000360% drop rate.

https://steamoss.com/app/3231850/discussions/0/4630357016599119092/#c600767695999214242

Virtually impossible to complete this game.