Yes, it does perform as good as it looks!
I had been using my Colleges masks for a while now. The auto dimming feature is fantastic. I normally used fixed shade and this feature alone made it worth it. Plus I switch from arc to plasma frequently and having that option is awesome. Finally I like the sensitivity adjuster. Mainly because I'd notice when I was grinding with my shield down it would auto darken from the Sparks. Adjusted the sensitivity and it's perfect. Couldn't have asked for a cooler well working product.
Consthe knobs that tighten the shield so it stays up come loose quite frequently and always have to be adjusted. Not a big deal, just slightly irritating.