I've read some good and some bad reviews about this particular GFCI socket, but I've installed 15 of them (all indoors) and haven't had any problems to speak of. The old house with the little tin boxes was cramped, but they all got in and every single one works just fine. I'm so glad I finally got rid of the old 2-prong outlets that originally came from my 1953 house, no more 3-prong adapters. So there are no complaints about my personal experience with this product. I hope they perform well for many years to come, only time will tell, but so far so good.