Its ability to keep track of health data from multiple devices/sources and present it with accuracy. No issues so far but this will be an ongoing process as we grow bigger which is expected for any startup. It's able to store large amounts of medical data using a simple user interface which makes it easier for healthcare providers or users who need accurate information regarding their health conditions. DigiQure is the best in the business for quality, affordable and timely delivery of health care products. I have never experienced any problem with the product or the delivery process. I have only good things to say about DigiQure. I highly recommend this product to anyone looking for quality health care products. The product is great and the delivery process is very quick and hassle free.