Summary: Should have bought one ages ago. I cleaned the lounge, hall and stair carpet in less than 30 mins and they came up all fluffy and like new. Works on all surfaces and changing attachments is easy. Can clean the house properly in less than 2 hours AND I MEAN FLOORS,CARPETS,TILES ETC and it actually feels clean. I plan to do this once a week and should take less time after the good once over. I'd say buy one.
Pros: Not great for upholstery. Did a mediocre job on the grout.
Summary: I purchased the Karcher after reading many reviews and researching a lot of other cleaners. The only negative comments I could find about this cleaner was the length of the lead but as long as there is a power point in every room you need to clean it isn't a big problem. I also think it would be a lot better if the lead was retractable. In the photo you don't even see a lead which makes you think it is inside the machine, it isn't.