Blaze's popularity baffles me. It has locations all over the country, although I guess it's mostly in big cities so people from smaller areas don't have regular access to it. Regardless, it's mediocre pizza -- not bad, but certainly nothing special. Pizza Ponte is dramatically better QS pizza at Disney Springs, and there are multiple QS places there that have better food overall.
To be fair, there's one like 2 minutes from me, so it's certainly not a novelty for me. I also haven't been there in years because I can get much better pizza from other places nearby.
The DDP really screwed up Disney's food quality, but I don't expect to see that change.