It was fantastic. I thought 3 was a great ending but this was a worthy successor. And when the movie faded to black I thought this was a good finale, but between the end of the movie and when the credits roll there are a few clips and damm if I'm not interested in that for Toy Story 5. No idea if that's the plan but if they do it right I'm down for it. Or it can just be a few gags. Either way.
And yes, this movie pulls on the heartstrings a few times. Nothing as devastating as the opening montage of Up or Bing Bong fading away, but there are moments. It's what Pixar does.