I didn't say I had ever used a Voyager.
I hang out at
WWW.RV.NET a lot over the last three years. There are several topics that I watch closely. Brake controllers is one of them.
Many people have upgraded from the Voyager to the Prodigy. I have never heard of anyone going the opposite way.
Until the Prodigy came out, I think the best brake controller you could get was the type that used a time delay mechanism. I think Prodigy was the first one with a means to measure acceleration, or deceleration.
Other types of brake controllers either tap into the hydraulic fluid line or are a cable connected to the brake pedal of the TV.
I have had my Valley Industries Odyssey since I got the TM, March 2005. I paid slightly less than $100 for it. It was recommended by someone here on the TMO forums.