Do all steadycams have the floating effect?

I have seen many steadycam videos and some of them just look stable when the cameraman is walking but there are others that have a fantastic effect that it looks like it is floating...

Can cheap EBAY steadycam like the one linked below do that effect?

http://www.ebay.co.uk/itm/NEW-Easy-Cam-digital-DSLR-Camera-Stabiliser-Camcorder-Stabilizer-Steady-cam-UK-/180937693267?pt=UK_Tripods_Heads_Stablisers&hash=item2a20ba1853

It would be used in wedding videos.

Thanks.