This should probably be in the Product review section. I only spotted this post now so apologies for the delay!!
Someone did a Demo of a Kirby at my in-laws house last summer and I was really impressed with it. The only thing that put me off was the price - over here it was about $1800(coverted approx): aka EXTREMELY DAMNED EXPENSIVE!! Anyway, after a bit of fishing around I picked a used one up at about 1 fifth of the new price - still expensive, but it is excellent.
Firstly, although very heavy, it is small - great in the van. Second, the suction is fantastic: First I throw the mats down and run the regular attachment over them (the one for doing carpets) - perfect size for the mats. Switch around to the hose and suck out the car interior: There's an excellent attachment for this - has a spinning horse-hair brush to agitate the carpet and fabric so it deep vacuums everything. Long horse-hair attachment to do the dashboard and vents.
Switch the shampoo attachment over (Its like a paint spray gun, but shoots a very light foam onto the surface). Rub it in to the carpet / upholstery / headlining with a soft brush and it is spotless again. The foam is so light that it dries up in half an hour or less - not bad (although I like to rub it all down with a clean soft cotton cloth to finish off).
After Washing the exterior of the car,you have a powerful blower. Blow the excess water off the car and then dry with the towel. When blowing the dust-bag is taken off so there is no chance of anything coming back out.
For the mobile business, its a real time saver. I've knocked a good half hour off my interior valeting time with this and that makes a huge difference. Doing two or three cars a day, thats an extra hour plus that I have saved. Mobile people out there will know exactly what means.
Conclusion - there is no way I would purchase a new one at that price. I bought the used one from someone who laid hard-wood floors in the house, so didn't need it anymore. Its 3 years old and rusn like new. The attachments are extremely durable. Except for the price this thing gets a huge Thumbs-Up from me. :xyxthumbs
Brian.