They’re my first cases so I don’t have a whole lot of perspective. Rock solid though, wasn’t too worried putting it in checked luggage with the lids clamped on. One of the lids came out with a chip out of the “wood” though, so that was disappointing to see it was particle board and not timber. There is a tonne of available power, I think if I can find a daisy chainer that fits I could power them all from one psu. Unfortunately I haven’t so I’m stuck with 3 power cords at the moment which is annoying. Lids do close with patch cables in, but not if you’re patching between rows in a layout like mine. (I don’t mind because I usually use this as a generation tool straight to wav then repatch). They screw together, but the screws are really short so I just gaffa taped it . No problems with ground noise, even with the mikrophonie and trogotronic. Power switches on the underside are a bit annoying. When I eventually get bored of this voice setup I might get a fourth and have two stacks of two which iI think would be more elegant. They’re expensive, but two of the three I got either as-new-second-hand or heavily discounted which seems to happen pretty often.