It would make it easier and a lot more user friendly if the clients can download all their favorites at once with one click.
Right now you have it to where the only way you can do that is if I write in "No download limit," but sometimes they pay for a certain amount ahead of time, ie.. 50 or 100 photos. It would take them a long time to download 100 photos one by one. I figure they should be able to add all their favorites to an album and then just download the "Favorites"album.
I hope you can make this a feature soon. It will make it easier for the client and it seems more professional. Also, I don't want to email them their favorites after the fact. I rather they can just download instantly on their own. Lot easier for everyone.