I have put another magnetic screen door to the test, this one if from Tresalto, and is similar in construct to other types that I have tried. There are several strong magnets, sewn into the fabric, making for a tight close, with no gaps. It comes with 12 sets of velcro, for installation, as well as small nails to use for extra support. There is also a cute little lace curtain sewn to the top of the screen door, to add a little more style. It fits doors up to 34" X 82" and word is, that the company plans to release both larger and smaller versions, soon.
Velcro Strips hold tight
Additional nails for extra support
Cute lace curtain
Would have preferred more velcro strips (personal preference)
So, as you can see, other than a personal preference of more velcro strips (which are easy enough to add), this is a solid product, that does exactly what it claims to do. With the cooler months coming, it is time to invest in a screen door like this...it is easy to put up, and easy to take down, and will allow all the great crisp fall air to come in, while keeping the bugs out.