I asked about these about a month ago. I am planning on upgrading from 2-way to a 3-way component set and I was trying to decide between PHD, Morel, Hertz, DLS, and a few others, but while I was looking on the 'bay, I kept consistently seeing this PPI set with the yellow woofer/mid and the "home audio" AMT pleated diaphragm tweet.
The price on this set is actually better than some of the other brands I was looking at, but I have no experience with PPI, so I was looking for some input. Good to hear that folks like it. I'm curious enough about the tweeter that I may get it just to hear that!