The SA noise filters have not received UL approval yet, so therefore are not available for sale. When they receive UL approval, they will be very public.
UPB is a great technology, and I wouldn't consider ever removing it, but nobody should assume that it will work perfect with absolutely no debugging. In my house I had to use 3 bridges to get the signal up to an acceptable level. I've heard of another case where a PIM had to be used on both phases with a special joining cable to get the signal high enough. Its going to take some time to get all the bugs worked out, especially with the wide diversity of all the things you can plug into a powerline.
Post problems and solutions here, but also contact SA, PCS, or HAI and let them know your problems so they realize the problems.