@uiv, you are senior member and comments on a product without using it or before confirming from seller, not expected from you.
It is possible that 6 year ago your product was not good, but it is not rule of thumb for all.
I have captured a video about device usage, This is small device and not meant to use for carpet, but for demonstration purposes, I have used it on carpet and on other area. I believe this video will be available shortly after conversion on Vimeo.
@uiv, I believe you will remove your comments.
https://vimeo.com/112679474
[video=vimeo;112679474]https://vimeo.com/112679474[/video]
For all others, this can be use on PC/workstation and in car where big devices can't work.
Thanks
Tanveer