Appium Studio(AS) is pretty much good tool. They have the same method names as we use in Appium, but most of the functions work stable.
Common problems in Appium:
I see lot of changes in Appium which makes us un-trusty and lot of compatible issues, but i didnt see these problems in AS.
I am not sure why Appium discontinue to use some common useful functions like scroll etc...
People are creating their own driver and stuff etc.... some features work in one driver may not in other driver. Appium guys have to stabilise these methods across different platforms and build that as core functionality.
Had a very bad experience working with iOS platform.
With AS, best of all is, we can use same Windows machine to test both Android and iOS application. I am not sure why Appium is missing this part.
The major drawback i saw in AS is that, most of the methods will work, but they are evolving and are trying to support all advanced interactions like TouchAction, WebView interaction etc.. in their recent versions.