Yes, this will probably get shot down by people who have never used one, or have used a similar looking vacuum made by somebody else... but those who have used one know how amazing they are - especially for laminate or wooden flooring.
Either way this is by far the cheapest you will find one - snap one up ASAP - you won't be disappointed, and they WILL sell out.
If you have never used an actual iRobot Roomba 560 then please state this before slagging off!
This thing will basically vacuum 4 or 5 rooms on one floor at a set time (when you are out, but reviews say it is more fun watching it!) and once done it will return to its dock to recharge for the next day. It goes under beds, around table legs, it goes right up to skirting boards (it has a rotating feeler brush which whisks dust and stuff right up to the edge) and if it collects a lot in one area it will give it extra time.
It has these 2 little lighthouse things you can put by doorways of rooms you don't want it to go into.
From reading reviews and user websites the only slightly negative thing is you have to pull hairs out of rollers every now and then, especially after the first week when it has sucked up all the stuff your old vacuum has missed over the years, but this is a simple procedure, as is emptying them of the dust. And that it only does one floor at a time - with some people loving them so much they buy a second one for upstairs : D
You will need a Makro card to buy this - they are free and there are threads showing you ways to get them, e.g:http://hotukdeals.com/item/228571/how-can-i-get-a-makro-card/
Check out the videos on youtube for a slice of the action - cat lovers beware!http://www.youtube.com/watch?v=ewdbilSWjaM
Dig the info-mercial:http://www.youtube.com/watch?v=Qo5lPlG1Khw
Details from the Makro catalogue:
I-ROBOT ROOMBA 560
Programmable robotic vacuum cleaner
Works on all surfaces
Complete with dirt and room size sensor for perfect results