This one is bit problematic for me, because I like the game, but after second crash when trying to save at the same point, I'm not willing to repeat all the fights once more, to see if this time it might work.

I like the characters, even if the story is bit lacking.

The loading screens are way to frequent and long and it takes considerable amount of time to move between the menus as well. If you're to play it – avoid the Switch version.

It's not worth anyone's time. The character is very stiff, movement and interactions with environment feel like something in early development. For example when player is killed by the bird when the bird's sprite touches the character that's it. No death animation, no sound. Bird keeps flapping it's wings while staying in place of the collision while screen fades black.
On top of that the game requires player to know exactly when and how to move in order to avoid some obstacles without giving them any chance react. You need to die in order to know what's going to happen.

Pretty good game. Mechanics were fun, especially when levels had uninterrupted flow, which felt really good even when losing. Unfortunately often this wasn't the case and game was pretty frustrating.

Also it crashed at the very end of final level, so I decided not repeat it and watch ending on Youtube.

It wouldn't kill it to have few extra checkpoints, so players don't need to repeat the part they became very familiar with before trying the new challenge.