It is really a good thing to have. Many of the things are really good and already builtin, and the main reason of having this is, you do not need to brainstorm on different layouts look and feel; which are already available and designed in this UI version.
I've been praying to GOD that you guys would do something with React Native. I just happened to be doing nothing at work and went to your page and found your new React Native template an hour after your released it. THANK YOU! All of your products are phenomenal!