Looks like the VK135 and the Paragon head make a great pairing. Lots of suck and agitation going on. It is good to see the Paragon head still listed as a spare from Electrolux and AEG. We always prefer a power head with manual height control but there are few choices these days and often costing lots of $£€. Is this a new Paragon head or is it the one from around 7 years ago?
Oh yes manual height adjustment is very handy for different styles of carpeting. This is indeed now 7 years old, but it still works well. Only the neck lock is getting a bit loose. Great value for money. It was only 80€ when I bought it brand new.