Plantmax hps and mh light bulb reviews?

Has anyone tried plantmax bulbs? I haven't found any reviews yet so i'm wondering if they're good or not. Any input is greatly appreciated and i will give +Rep for reviews.

I just switched over from T5's 4 54w 6500k @ 20,000 lumens for veg
and just bought a 400w Viavolt digital ballast w/ Batwing reflector.
The setup came w/ a 400w Plantmax bulb(HPS)
Just wondering how it worked out for you?
Did you upgrade? I think I'll most likely get an expensive bulb
with a little more lumens and use Plantmax as a
backup.