Quick disclaimer: I have only played the Pacifist Route so far. I plan on playing the other routes in the future at some point. All my thoughts on the game may be reconsidered after I play the other routes. I will be doing 2 other reviews after I beat each of the 2 remaining routes.
Probably one of the best fangames I have ever played. Beautifully recreates what made the original so endearing with some nice changes where necessary. I felt like some characters could've been expanded upon a bit further like Dalv but I was satisfied by the story and arcs anyways. I'm not really a fan of the difficulty spike near the end, especially with the final boss but I toughened through it. 1000% would recommend if you enjoyed the original Undertale in any capacity. My deepest respect for the dev team for sticking with the game for so long.