I have used Astropay a few times now for large amounts each time and I have had no problems at all. It is definitely NOT a scam that’s for sure, I use the app on my phone and my laptop to access my account. The only criticism I have is that there should be an option to cancel a pending transaction when adding funds to your account, the reason I say this is I had the incorrect amount when adding funds so I didn’t authorize payment and I had to wait for it to time out before resubmitting the correct amount. A cancel transaction would have speeding up the process but it was my error.