Most opinions I'm finding are years old, so I'm not sure if they're still relevant.
The official site sells it really well, and both the IDE and the analytics platform seem like good products.
Any thoughts? What are the alternatives?
I've used Cordova/Phonegap (where you build webViews, not native apps), which is an OK solution. It's pretty good for rapid prototyping, but the user experience isn't as good as a native app.
>What are the alternatives?
For code reuse & native apps, React native would be a good and modern alternative too.
React native : https://facebook.github.io/react-native/ List of examples apps : https://github.com/maxenceC/open-source-react-native-apps
It's doesn't feel mature yet, but it's a way better solution than webviews.
I've tried some IDE specific for React native, and Deco (https://www.decosoftware.com/) was great !
Most recently they introduced Hyperloop (not that one!) which allows direct access to native API's, use of cocoapods etc directly from JS. That would be fantastic if it didn't require a team licence of $1200/seat upfront to even use. With React Native taking off and Nativescript also offering native API access, I can only see it withering behind the massive paywall now which is a shame.
Personally, most of my new projects will now be React Native as I'm confident it'll be around and well supported for longer.