I am fortunate to be one of the early users of the product and even though it is still relatively new, it fulfills its promise of being simple and flexible. You can get onboarded quickly and get your builds in no time. The user interface is modern and sleek. The workflow management interface is also very intuitive. One thing that really made a difference for me is their online device emulators. You can build and then test your apps quickly in the browser. Certain nonessential features are still in the roadmap, but I have seen many of the roadmap items delivered during the beta, so I am hoping that the rest will also come soon.