Okay supper-sweeper I am getting rather p*ssed off with your constant BS. You really cant stand the fact dyson have made a very good vacuum cleaner can you. I love mine. I used my felix the other day and was impressed than ever at the differences between the two. I have got used to the ball and it IS easier to use than the felix and the S7 I had. The S7 is a pig of a machine, far too bulky and the swivel steering on it wasn't agile at all.
The felix is better and the lying flat to the floor helps, but the ball, you really can turn 90 degrees. Dyson isn't fibbing when they say that.
The lying flat on the floor problem is not to do with the ball. The size and profile of the ball is quite small, the problem it the wheels don't contract up high enough, meaning if you lean the vac right down low, you can lift the head up off the floor. I will post a picture later to show you what I mean.
You can get much further underneath beds and obstacles than you think, you can also go side on like they show you in the adverts which does work.
@marcusprit - The dyson suction motor is ever so slightly louder than the Sebo's, but it is not a whining horrible noise, it is very pleasant. You can hardly hear the brush bar motor, only noise than comes from it is the brush bar beating the carpet itself as when you go to low piled carpeting, it is near silent.
The combination of suction at the head and agitation of this dyson makes it the best vacuum for carpet and hard floors I have ever used. I am not being paid by dyson, I have a sebo and 4 other vacuums, I can pick and chose between them, and I go to the dyson each time. It is a lovely vacuum.