Nice, very nice. I had one of those for a while and I really liked it. I couldn't get along with the sweep, and I couldn't figure out why for the longest time. After playing what felt like every Dunlop made wah under the sun (in actuality about 6-7) I found out that in my rig, for playing distorted with a wah, I need one with a fuzz buffer in it. I just got a really nice wah a few days ago and I love it. Part of me wishes I had kept the MC-404 and dropped a fuzz buffer in it, because it is a spectacularly versatile and great sounding wah. But I like my new one, so I don't mind.
Just beware that the boost is pretty much useless.