All in all Id have to say this is the most versatile POS program out there for iPad. Definitely worth 40 bucks for the full version. Not entirely sure about the new interface, but it might just take some getting used to. The only thing I could suggest for this app is the ability to add terms and conditions for sales reciepts. Also customizable templates are nice too, Theyre not needed, but the inclusion of them would blow away the competition.
If you want a highly customizable POS system that can pretty much work for any business, I highly recommend this app.
Gubermonkey about Ring It Up Universal, v5.3.1