Ya, I like that Jiffy Lube system.
The thing I'd watch out for is when they 'vacuum' all the tranny fluid out of one car, then the next customer comes along and they "reverse" the plexiglass cylinders and say, ya we got your fresh transmission fluid right here.
At the very least your going to have to get the filter kit from an MB shop, no way they have that on hand.
Also, you will need a 5mm allen wrench to open the torque converter. Also get a remote bump starter (cheap) so you can lay under the car and advance the engine until you see the drain plug come around. If you do it with the key you'll be there all day.