The AEG Ergorapido is a 2-in-1 "stick" vacuum with rotating brushes with a handheld vacuum that pops out. If you like vacuuming in the dark AEG have included LED lights on the front of the brush box so you can tick that important box.
I live in a duplex flat; and use iRobot Roomba 555 Vacuum Cleaning Robot
to maintain the ground floor; sadly the iRobot suffers from the same design flaw as the daleks and won't do stairs so for me this ticks a vital box that I have been using a large mains Dyson as my second vacuume for some time. Using the Ergorapido in Stick Mode is outstanding for cleaning stairs; its light and easy to manoeuvre up and down the stairs and the rotating brushes are great and getting fluff out of carpet.
Taking the dust-buster out of the stick you can use the brush attachments for smaller areas or on furniture. The dust buster works almost as well as a Dyson handheld; the suction isn't as good but AEG provide a fairly hard brush attachment if you need a scrubbing action.
The batteries and charging on the Ergorapido seemed utterly baffling and I do think AEG have made a poor choice with regard to recharge time; a Toyota Prius can drive up-to 15 miles after charging it from a mains socket for 2 hours;. The Ergorapido needs 16 hours to last 20 minutes: of vacuuming. AEG have provided two options for charging it; a wall mounted and a floor mounted base; using either of these uses a lot of space though as it doesn't collapse. The charging mount holds the two included brush accessories for the dust-buster. Luckily I have a cupboard that it fits in when charged so it doesn't stand out all the time.
The ErgoRapido is a bit of a mixed bag; the long recharge time seemed bad till I actually time my Dyson Slim to recharge; Dyson manage 15 minutes of Vacuum action; though the Dyson is charged in around 5 hours.
The AEG is half the price of a Dyson Slim; and despite the slower vacuum time its dual design works really well as a second vacuum.