Roadmaster Brake Pro

Is there anything wrong with the Roadmaster Brake Pro? I am getting ready to tow a '98 Jeep Cherokee Classic 4wd, I was towing a '96 Tracker and didn't need one for it but the Jeep is about 800#s more and I will feel better having a supplemental brake. I know that the Even Brake is the newest one from Roadmaster but I can't go for a new one yet so I am looking at a Brake Pro as a starter for experience and will move up when I can later. Any comments from those who have used one will be much appreciated.
Also, can anyone tell me how to make changes on my signature? I have tried to find it through this website but can't find the correct link. Administrator can you help?