I thought it was an absolute masterpiece, the finest 75 minutes of television Who or any show has produced. It was a love letter to Who, but moreso to the character of the Doctor, and I think that the ending, when all 13 Doctors come together to save Gallifrey was absolutely perfect. But it was also funny, emotional, full of dramatic weight, a showcase of everything great about Who and of course, Matt and Jenna at the heart of it absolutely killed it.