I use the EOS template and have recomended it on numerous occasions
My web galleries are generated with Breezebrowser simply because I prefered the layout over the PS style.
I've never had a problem with the software itself, and most days I get multiple orders coming in. You receive two emails - one is the order and the second confirmation of payment.
The only downside is that when someone doesnt use the third party software for the payment (in my case Nochex and/or Paypal) properly I still get notification that an order has been placed even if payment hasnt been received. I simply double check all my orders as they come in.
Hope this helps