Mex, One thing I did enjoy about epay url is the ability to add a wallet address into the url and it was applied to the site.

example http://yourfaucet.com/?w=bitcoinaddress&r=referalbitcoinaddress

the "w" variable is added to the bitcoin address of the site so no need to add copy and paste.
Great for faucet list like mine. Would save user time one claiming from faucet and proceeding to the faucet list.

~AvalonRychmon