I've already tested a number of different flyscreen over the past few years - the Tesa Comfort is worth the money in any case. The difference between standard (and also all the cheap products) is the tape ... just stick to the window and he stops !!! And it can immediately fly screens are mounted ... are waiting with some other need a few more hours. All in all, the provision of mosquito nets with floor to ceiling windows each window lasted less than 10 minutes !!! And tool (Squeegee for attaching and small knives for cutting tape and mosquito nets) is included with each grid ... just perfect !!!