Just wanted to put in my experience with the spektrum.
2 friends and me ordered 3 spektrum systems, when we received it just 1 worked (two had the glitching issue). We contacted Spektrum and was told to ship them back for software upgrade.
Ok, no problem just ship it back and have them fixed

Well not so easy, finally 2 months after we shipped the two units we received them. After all this wait it was like christmas for us. But once again there was trouble, now one unit failed
The problem now was actually one of the TX units as I borrowed my friends tx unit and it worked fine.
I was once again told by spektrum to return the RX for software upgrade
So much for that fun, I'll probably wait another 2 months to get this stuff againg
My friends experience with the product is good, but the customer service is not exactly outstanding..
How has customer support been for others?