I have multiple domains. This product is amazing for just setting everything up and boom you got e-mail for all of them redirecting wildcards to where you want it.
In less then 30 minutes I got 10 domains working.

Problems:
The mail lands in my spam but that something I need to tune with my inbox to detect and put into correct folder.
Since the customer initiated the e-mail for them it's guaranteed not to go to spam.

The biggest problem for me is that customer sees "Forwarded to " and "ProxiedMail logo.." I checked in settings "Remove banner in forwarded emails" but it did not work. I am sure they will fix it, it should be an easy problem.
If they decide to force the self adv., then it's not worth it. Hope to get it fixed soon.