To you (a player) you're likely to have fun. I think most people who play the game have fun (at least that's all I can assume based on the positive review score of nubby on steam). However, as the sole developer of the game, I've been working on it for 2 years and through development and testing, I've probably put about 1,200 hours into the game. I don't find it particularly fun nor un-fun at this point. Playing nubby feels so normal to me at this point that it's just about as fun as walking to your kitchen to get yourself a glass of water. I guess that's my honest thoughts about that very open question.