Let's start with pixar pier.
General guests seem to like the pier. Some dislike it though due to it being rushed, but most like it due to it being more energetic than the original pier. Jack Jack on a stick is disliked even for general guests. Some guests mock the, what they call "disney fans" without fully realizing why uber disney fans are upset with the change.
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Biggest criticisms against ubers that generals had: more energetic, the original wasn't that good (mainly due to cheap carnival rides), IPs were everywhere even during the walt era.
Biggest Agreements with ubers general guests had: very rushed, jack jack on a stick, incredicoaster should at least be redone, california adventure isn't very californian anymore.
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Overall, I saw more positive than negative, but the fact that results were more mixed than usual (usually people love everything disney does) is a bad sign for disney.