Product review (5 stars): MagVent great safety for dryer
Our dryer seems to work more efficiently since installing the MagVent. Our only challenge with install is that our wall vent enters the wall and then tapers up, kind of 45*. Had to have help hammering the angle out of the wall vent in order to get the magvent to seat itself  correctly in vent. The connection does have to be straight on in order to work properly.  We think the dryer works better with lint control since it no longer has to travel the snake tube before exiting the vent on our roof. Would suggest MagVent address the entry into the wall vent issue to make it easier to install.