The ease of use. The customer service is great. The training is thorough and not overwhelming. I have been able to train my team quickly and efficiently. I have had a few glitches with the software but the support team is always right on top of it. They are great to work with! I have had the pleasure of using two different POS systems in my career. Quick POS is the best. We have been able to use it for all of our stores. It is great for our customers and our team members. We also use it for our inventory.