I had one, I thought it always felt really cheap, always worked and I never had any issues with the working of it but there again I never dropped it,
I use a couple of 3vcs tranny combos now and to say they are both made by futaba the difference is chalk and cheese the 3vcs is quicker response and a lot smoother in performance also you can alter loads more stuff for your setup.
May not be what you wanted to hear buddy but it's my honest opinion, hope you get yourself sorted.