I thought this product was great. It wasn't the cheapest monitor available, but definetely not the most expensive either. I wanted one that was super sensitive since I wasn't able to shell out the big bucks to get a video monitor. We started using this when my son was 6 months old, when we moved him to his bedroom clear on the other side of our 2900 sq ft home. It worked great. I left it on all night and only had a few minor problems. About one night every other week I would hear static so I would switch it to another channel and it was fine. Never once did I experience any interference and hear my neighbors conversations. The only bad thing I can say was after about 4 months of non stop use for some reason the charger stopped working. However, i called the 1800 number and they replaed it, no questions asked. Luckily my son was old enough that I didnt need to use it every night anymore, or else I probably would have been really upset! For what its used for it works fine. They have a vibration mode on it that vibrates when it detects noise. I thought it would be useful but i never really used it.