Product review (5 stars): Great solution to an old problem and works as advertised.
My dryer is in a very tight area and has always been difficult to properly attach a standard flex or ridged vent tube.
While moving it several times to paint, remove/install baseboards, and occasionally repair the heating element, I became determined to find a  better attachment for the vent hose.
As an avid "diy"er type of guy, I thought of  rigging some kind of magnetic attachment, but in trying to find ideas I found this Magvent company who had come up with the solution already.
So many great ideas get developed but then a company uses poor quality materials and poor workmanship.
I was pleasantly surprised that Magvent followed through on their idea/design with strong, top quality materials and workmanship.
The heavy gauge metal parts are plated to prevent corrosion, the magnets are strong, and the fit and finish of all pieces is excellent.
You can trust what you see in their installation video: it works as advertised.
About cost: It did seem pricey to me at first.
  Now that I am using it, I have no problem justifying the cost because as I mentioned before, the materials and workmanship are top quality, it solved my immediate problem, and with the now with much less restricted air flow from the dryer, it doesn't run so long to dry the clothes.
To sum up and let you know how I feel about the Magvent, I'll say this: If I ever move to another house, I'm taking it with me !