It's very simple user interface makes it easy even if you don't have much experience using POS software! Nothing really that I dislike about this product so far but there are some minor issues like sometimes when changing pages (I'm not sure what causes those) my cursor gets stuck somewhere between two buttons which can make me lose focus from where i need too -.- Sometimes scanning barcodes takes longer than expected because its slow connection/no internet etc., also adding new products into inventory system would be faster as well since everything else seems pretty fast once done loading up first page :). Overall great piece fo equipment!! Great customer service provided by support team at VARTROLLER who helped us set things right after experiencing technical glitches during implementation phase. I like that it works with our POS system, but also allows us to track inventory without having a separate point of sale terminal. The software has been easy to use as well. It does take some time to learn how everything functions. Give yourself plenty of time and do not be afraid to ask questions! We are solving problems we were previously unaware existed by using this product.