Mario 64 has a lot of soul and playing it takes me back to my childhood, even though I never owned a N64. Unfortunately, the camera controls make for a very frustrating experience, that often times made me want to stop playing.
Also, having to exit a painting every time I got a star didn't feel great.
Still, for a 27 year old game, Mario 64 holds up very well and is still able to provide many hours of fun.