Documents about transistors from polyfet.com

Is Someone built amplifiers with transistors of firm www.polyfet.com?
Is she credible...
Is her transistors have good repeatability ?


Thanks for informations.

Yes, they have presented some papers on the same..

http://www.polyfet.com/broadbandmatch.PDF

http://www.polyfet.com/mtts2002.pps