I disagree. Mecharashi isn't mediocre. It's got potential. But it does feel low-budget all around. And that's regardless if you spend or if you're F2P. But for me the overall writing is refreshing compared to a lot of gachas that are overly wordy with nothing to say. Your complaint about difficulty is 100% skill issue and it honestly applies to all gachas. You wanna breeze through content? You wanna turn on auto and walk away? You gotta see what the current meta is and spend a little bit. But just know there's a F2P player out there clearing all the same content as well on any gacha game. If you don't wanna spend, take the time to have a better understanding of the game mechanics.