Stephen Georg’s review published on Letterboxd :
I don't think there could be a stronger, more meaningful ending to such a well-loved series like this. Masterfully written and voiced, Toy Story 3 had all the right nods to the earlier two films while establishing a completely new story. It was a real treat watching all three of these movies back-to-back, and it helped me recognize some of the references in the third film a little more easily. It was also fun to see the technological advances (the jump from 1 to 2 wasn't as noticeable as the jump from 2 to 3, which was huge!).
Overall, a perfect ending to a great franchise. ...although let's be honest, Toy Story is a cash cow. There'll definitely be a Toy Story 4.