It's been quite some time since I have fired up the JVM410H, and even longer since I have played it out. I certainly never had a bad opinion of it, and in fact, it was my main gig rig before I had the opportunity to pick up some of the crazy stuff I have.
I hate to have stuff and not use it though (and I hate to get rid of stuff) so I played it out for the first time in a while last weekend. Man, it was like spending a bunch of time practicing swings with two bats and then stepping up to the plate with one bat. That amp goes from DC to light. Forgot how nice that the clean channel is (green, orange and red, but particularly green...) As before when I used to play with it out, I never make it to the crazy gain channel 4, but there isn't much that you can't get out of this amp, and all at reasonable volumes. Played it out through a 1960BHW, and the extra low frequency punch at medium to high gain tones really makes a difference at lower volumes.
For some reason, I don't find myself wanting to play it at home by itself. Even though I don't gig out much with the JMD:1 either, I do find the time to noodle with it at home because it's fun to experiment with all of the options. Not so much with the JVM. As a gigging amp though, I'm not sure that it can be beat if you cover a ton of material.
I still am getting a kick out of figuring out how to work in single channel (and mainly vintage inspired) amps into gigging, but every now and again, it's really nice to just take the Caddilac for a spin because you know it's going to be a comfortable and cool ride.