If you're talking about the RC Bass Boomers, I can't say, I haven't tried them yet. They're on my list though, because I like what I hear in demo videos. As for the classic Boomers, these are good NPS strings, but I much prefer the Super Steels. And I recognize, as michael_t said, that they are a bit more balanced than the competition.
I've been making my own balanced tension sets for a while with single strings of different brands of hex-core steel rounds, but it would be more interesting for me (and cheaper) to buy ready-made sets specially designed for this purpose, as D'Addario did with their EXL-BT series.
Now, I realize I'm in the minority, so I don't think I will see this in my lifetime, but I am convinced that the balanced tension concept is the future of bass strings.