Did that house just say something?

Are you familiar with the talking house? It is a marketing tool which allows people driving by your listing to tune into a radio station and hear all the details about that listing. I believe it costs a few hundred dollars but i could be wrong. There is no yearly fee which is great just one time flat price. You can buy them cheap on certain auction websites.I have no personal experience with the talking house but the one thing i did notice is the sign saying what radio station to tune in to is always to small and hard to notice in my opinion. I would get bigger signs if i decide to use this tool. I do think it is a good idea and i considering trying it out. I would like to learn your experience first if you will be so kind.  What has your experience been like? What is your opinion on the whole concept?