The mb forum people that are pushing that higher end tool are... how to put this.. of the my way or nothing sort.

The foxwell should do what you want. It cant do everything that other tool can but for most people they never need the other features.

Take the bmw stuff I do (I have to use it as example since its kind of my specialty ) the foxwell will do just about everything I need code clearing wise and code reading wise. Also I can see data from the different computers in the vehicle.

On the other hand the foxwell can code a new module to the cars and can register a new battery but its cant set options coding wise. I cant use the foxwell to code how the doors unlock such as having it just unlock the drivers door and not all the doors on the first press of the remote.
I cant program the doors to autolock at 35 mph, etc. So the fancy stuff I have is better when you take that into account. But the fancy stuff cost more and isnt needed for code reading or clearing. Also the fancy stuff cost to much to keep in the car even if it would fit in the car to carry around.

The foxwell is tiny and I can keep it in the vehicle at all times without it getting in the way and does what I would need a tool like that for when Im not home.