I have had two successful experiences with this company. I have unfortunatley had more negative experiences. I find it hard to believe that it takes 15-20 minutes to collect data before you can tell me that I am not approved for a study. Just today I received a call after I was approved last night and told that I no longer fit the critera. The study I was approved for was tomorrow evening. What makes this all the more interesting is they did the same exact thing to a friend of mine on the same study. I question if Baltimore Research is on the up and up or if they are simply collecting our opinions for free and discounting us. This seems to happen more than not.