Pixeldrain has worked well for downloading other games before, but no idea how it is on the uploading side.
Viewing post in AOTE 0.6 public release comments
Either should work (hopefully). Mega tends to be unreliable with bigger downloads (not sure if it's an issue only I have or a general one) but for me bigger mega downloads just tend to stop partway through for no reason. Tried downloading the game a total of 5 times now between yesterday and today and I never got to 2gb of the overall download. My internet does work tho so no clue why the download keeps dying. Just gonna have to wait until you get a mirror ready.