Yes, I only went with the Amazon bundle for secondary reasons. I would have preferred to do the ones offered by RecTec. I don't have any experience with GMG, so one just has to do some careful comparisons I guess. The customer support and warranty (4 years) from RecTec is outstanding but having to order one is admittedly a pain.
So you haven't received yours yet, correct? I think I remember reading that, unless I was thinking of someone else. I just wanted to get more information about the app. I haven't heard good things. Not that the one for the GMG is great, I just heard it was better.