I own the SuperKraft GS300. It is a great flying .60 size plane. Full capable of all the good stuff. I have also found it to be very resilient after multiple dead stick flights with the OS .91FX.
The only problems I have found are cheap landing gear and some hardware. Other than that, it remains to be one of my favorite .60 aerobatics. I recently mounted a YS 1.20 on it. Once I got used to the extreme

power difference, it becomes a real blast!
Afterwords, I also enjoyed beating my OS .91FX with a hammer, many times.