Our dog was getting a lot flying insects going into his dog house and this was the best and easiest solution. It was made even easier when it came to its price point of $20. Highly recommended for any outside dog house and the fact that they had some for a rounded top was amazing and a hard find. You could just tell that our pitbull was 10 times happier with no unwelcome visitors in his house.
The only negative experience we had was when our dog decided to chew the doors up (as any pitbull would do so it was expected). He seemed to shred through it with ease so I suppose some thicker plastic would be more effective. However it was very easy to simply re order due such a low price for its effectiveness.