In its current state, it is pretty bad. The physics (as stated by other reviews) are terrible and there seems to be no real "end game".

However, I feel like it could do really well if there was an objective you are trying to get to, or even if a timer was going and you could prestige or something based on your time to complete all the nails.

I personally really enjoy "speedrunning" some games within this type and I feel like it has a good foundation for that but as it currently sits, its controls seem annoying and it feels just like a big waste of time.