I always wait 'till veronika puts the pack up in a zip file. Easier that way for me. *
I'm hoping they will offer a pack of the new font. So I'm waiting to see.
I usually wait till the pack is offered, having a subscription means I don't have to be in a hurry. But I downloaded a few already as I want to use them now.
As a paid member you can download anytime. I usually wait till Veronika has created a pack for the alpha which means with one download you have the whole alpha rather than downloading every letter individually. Have fun.
As long as your subscription doesn't run out before the end you can download them any time you want. The daily ones are free. If you have a paid subscription you can get ANY design at any time.
You have to download every day, as they go to pay for as they change.