Tru-Tron 3X envelope filter has made it to MusicRadar's list of the best new effect pedals at NAMM 2014. The Tru-Tron 3X is the AUTHORIZED re-creation of the legendary Musitronics Mu-Tron III for the modern age.
http://www.musicradar.com/news/guitars/namm-2014-best-new-effects-pedals-593423/8
You can also check out Bieke's review of the Tru-Tron 3X on FXDB:
http://www.effectsdatabase.com/reviews/mufx/trutron/3x