seSales is a worthwhile investment! I highly recommend it to small business owners running OSX. Its the same UI you'd expect in a Mac environment. Its convenient to not only have your inventory in the POS system, but to also be able to show images of the merchandise from your HD. Having a mobile office just got a lot easier. If you have the equipment, you can even add a barcode scanner and credit card reader. Managing inventory is easier now, as well as maintaining customer relations and keeping a detailed file of customers in one place. This software is a dream come true. Zarra Studios did a great job! As with all software, I recommend playing with it first, then reading the manual to find out what you missed-other than that, its amazing.