Product review (5 stars): This setup is the bee's knees!
Our vent ducting was impossible to get to so that I could get a decent seal.  The exhaust on the dryer was off of alignment with the duct going outside just enough to be impossible to make right.  The buildup of lint behind our gas fired dryer that we had a serious fire issue.  Not anymore with this brilliant little nugget of clever engineering.  I had almost two hours into the install, mainly undoing the poor workmanship before me, tight quarters and a little OCD when it comes to doing a job properly.  I did replace the old vent going through the wall because the tin was pretty tore up from previous attempts at alignment and bad craftsmanship.  The bracket mounted easily with the auger anchors around the top and I used some 1-1/2" grabber screws on the bottom into the sill plate.  Once I slid the magnet into the wall and clipped into the bracket I used aliminium tape on the inside to seal the connection.  Mounting on the dryer was cake when th the quality band clap and heavy gauge duct.  I pushed the dryer to the wall, the magnet sucked up the connection snugly, I pushed the dryer back to the wall and I now have a beautiful, safe connection.  Pat on the back for the designer/engineer for this contraption.
If you aren't really handy with tools buy this anyway and hire a handy person.
I needed a Phillips tip screw driver, tin snips, aluminum tape, caulk and a sheet rock knife to do mine correctly.
I purchased this directly from the mfg on a wait list because they were out of stock but decided to post a review here becuase this connector really is great stuff.