Everything is working, although there are a few things that I'd recommend. As a lot of people have mentioned, I need a board manager to make Arduino Create truly useful, as I spend more time developing for 3rd party boards like the Adafruit ones and barebones Atmel boards like the Attiny than I do developing for Arduino/Genuino boards.
2nd point - it would be literally awesome if you could include some kind of 123d circuits integration. 123d circuits has an "electronics lab" where you can actually simulate a variety of boards like the Uno, Nano, and ESP8266 with a virtual breadboard, and virtually upload code to these virtual boards. 123d circuits also allows you to develop schematics. So, I think that it'd be awesome if there was some kind of import function that could take the code already in 123d circuits, convert it to a sketch, and take the schematic and put that in there too.
Anyways, those are just some ideas.