If your MH is setup up for Brakemaster, you still will have to install the system on your toad. It isn't difficult except for getting the air line into the driver's compartment to connect to the piston.
We bought our Brakemaster in 2005. I had someone else splice the MH air brake line and I did the toad installation. A couple of years ago, we replaced the toad and I moved the Brakemaster to the new toad after I installed the base plate. In all of that time, we've never had any kind of a problem with the Brakemaster system.
It is a good idea to follow their recommendation and bleed off the water form the toad's reservoir periodically.
2000 Georgie Boy Landau 36' DP
2005 Saturn Vue toad