I like that it can be used in any of their products which makes development very efficient since they have so many tools for different platforms/devices (mobile / desktop).
It is also easy to learn as there are several tutorials available online or through books from O'Reilly Press if needed. The IDE itself could use some work but nothing too drastic here either way - just minor things such layout etc may need tweaking depending upon user preference's; however this comes down more towards personal preferences rather than anything majorly negative about using dartlang within visual studio code instead other editors out there! We're building our own web applications at present time mainly due javascript front end stuff and we wanted something cross platform compatible without issues when running locally via Visual Studio Code editor compared against local server setup e.g nodejs vs apache2 servers respectively.