Flutter. And Dart, while we're at it. What is the most hated thing you've got against them, and what's the most loving feature of the framework?

Pros:
- snappy hot-reloading
- everything is Dart, no more XML
- animations work very well
- (speculation) if Fuchsia pans out well, you're mostly covered on that platform

Cons:
- everything is Dart
- it's Google, so they might just drop the project in 3 or 4 years and everything you did is now useless