Auto Tap, OBD11 Test Tool

I have been reading about the diagnostic tool Auto Tap that uses a laptop to display most of the engine functions in real time. At $200 I was curious if this thing did all it is said to do? I already have a code reader and see no point in buying another one, if the one I have is sufficient, however if I could see temps, pressures, voltage, etc. in real time then it would be worth the extra cost. Has there been any feedback about this product? I couldn`t find anything in the search feature here.

Your post has been moved to Buick Non-Specific since it is a general question concerning the product and not a specific model Buick.