I downloaded the free engine a few days and I decided to purchased an upgrade on DVD. I expected to wait at least a week before the DVD would arrive. But much to my surprise, I opened Logos4 after I completed my order online and the upgrade started downloading ! I think it was less than an hour after I made the purchase.
So it downloaded over night and this morning I have my upgrade!
I'm a long time Logos user (LLS 2.0 1996) and this is impressive.