Functionality but clunky

Im using JSON editor to enter in a lot of data. It certainly works but bugs and UI flow problems keep this from being ideal
1) Crashes upon undo operations (after you add a new object/array)
2) Tabbing erases your entry rather than entering it
3) You can tab to a new line, but cant shift-Tab to the previous
4) You cant convert a null entry to Array or Object.

calvindhsu about Power JSON Editor