I thought acquire the Vax 6151 I know well and I was happy but given the promotional rate on 7151, I jumped at the chance. What can I say except that it's really a complete device that can deep clean your carpets, rugs and even tiled floors with the roller brush (for depression). Supplied with numerous accessories, I just completed the acquisition of the car kit. Once you read the instructions for use it well, you only have 2 to 3 minutes for transofrmer in the Vax vacuum cleaner bag with paper or cleaning injector / extractor formidable. The product provides Vax is not bad, although I prefer specialized products with high potential for dilution and therefore a better quality / price ratio (eg Alchimy7)