I actually really like this form factor. Jacks on the back mean that it's just as small as the little 1590A enclosures width-wise, you can put them right next to each other on your board, AND it's more stable so it doesn't tip over when you stomp on it at an angle. Knobs mean that it's "set and forget" rather than "tweak," but that's not typically a huge deal for me. Not a big fan of the plastic pushbutton switches rather than the mini two-way toggles (potential durability problems) but it's not the end of the world.
Will be interested to see how much they cost, and if you'll be able to get them from China super-cheap like the previous line.
So much win!