Very easy to use. Like that it's small and easy to transport. Seems very accurate when compared to other monitor. Only concern I have is the battery life. I placed the ones that came with the monitor. Did 3 individual checks and then next day battery was dead. Put in new batteries and the indicator does not show full battery. Went to the store bought new batteries and placed those in and results are the same- indicator still shows low battery. Not sure what is going on. May need to exchange the item for another one.