Most of the old Megatech stuff had a serious flaw.
That being all the equipment (radio included) was only good for "that" particular airplane. It really did not lend itself to being able to be used on the next airplane. The Megatech electrics do not have a strong following. Some people have made them work, but for the money, IMHO you would be better off with a different airplane.
If you want a trainer electric I suggest a T-52.
If you already know how to fly then I suggest a Zagi for a first electric.
I hope this helps.
Good Luck whatever you choose.