I like how accurate this product gives you when it comes down to analyzing your internet or cellular connection speed and quality. The customer service is also great if there are any problems with installing this device into my laptop. Some times the screen goes black during installation but not sure what that means exactly other than sometimes maybe the computer overheats? We have solved our connectivity issues by using RANTECELL! The simplicity! I was able get my app up quickly with no problems whatsoever - it's intuitive as well so there were few issues along that line too :). Also how easy they make setting everything out visually if you're not technical yourself like myself (I'm an artist!). As we continue working more features will be added but this one has been done already & works just fine at present time :) So far all good!