I like Joseph audio but they're nowhere near as good as the monitor audio platinum 200 generation 2 or anything in the platinum range. The top end isn't as natural and open sounding with the soft dome tweeter as the AMT tweeter is. And the bass is not as fast and articulate. And the sound stage is not as three-dimensional.
The MA's don't use an AMT tweeter; they use Ribbon tweeters. Not the same.
That said, I love my Martin Logan with AMTs, my MA Golds with ribbons, and every show I went to, I loved the Joseph Audio stuff I heard. My room is likely too small for Profiles (15x24), but Pulsars might be in the cars for me.