I've had G-techs for several years now and love them! I buy the upright type and not the stick type. I tried the stick one and found it difficult to manoeuvre as I have weak wrists and dodgy thumbs! Too top heavy for me! They allowed me to send it back no problem, even though I'd used it. I replaced it with the K9 which was much better. They are really light and can be carried upstairs easily. The customer service is always excellent The only downside is you need another cleaner for edges, stairs, upholstery etc. I just keep my old Henry in the garage and dig him out now and again so I can use his long hose. 