Yea, I just got my BT-300 today and updated Go4 and flew my MA and MP with not hiccups. Well pleased at this time. I like it a lot better than the goggles.
I had the goggles first and I liked them except not being able to see what was going on out side. I feel free now that I can see what was happening and I had no trouble updating and setting hem up. I was worried from some post I had seen, and it was a piece of cake.