I have used their tool before, and honestly it works well. it has a lot of bidirectional controls. I was able to command solenoids on and off while driving to test a 2012 GMC terrain. on a 3.6 litre chevy was able to check cam and crank correlations. of course your alldata repair info was right there to refer to it was pretty niice to have i miss having it sometimes. But it did do a nice job for me and my shop. I got a trial run of it for about 2 weeks. Also, it would allow you to graph i believe up to 7 pids at once. graphing was pretty decent. overall it was a capable scan tool for sure. for the money though of paying a subscription plus paying for alldata manager i think it is a reasonable option for someone who needs something that cant afford the name. but it does have its cons. by the end of the contract, id go with an autel or a launch.