I've now had an MHG 8x30 for about a week. My first impressions are nearly entirely positive. I won't try to give a fully technical analysis as I'm a birder not a binocular tester, so please bear with me in that regard
First, most importantly for me, the eye relief does work with my glasses. I struggle to get the full field of view on the M7 8x30. The Opticron Traveler 8x32 wasn't much better with respect to eye relief (and my sample was worse optically). The MHG 8x30 clearly has something around 1-3mm more available eye relief than the M7 8x30, letting me get a full perfect field of view readily with my glasses, without having to smash the bin into my glasses and then my glasses into my face.
Ergonomically I find no faults. They are lightweight, feel good, have good hinge tension, smooth not too light focus action, and fairly fast focus.
The large FOV is impressive, and I find them nice and sharp, including far enough to the edge that I don't notice the edge softening without looking for it. On anything short of an ELSV you can find softening at the edge of course, but that doesn't mean you'll ever actually notice it in use, and I find the benefits of a wide FOV outweigh the negatives. I don't see any rolling ball what so ever. I also never see rolling ball on any Swaros, though I do occasionally, briefly see it on the SF 8x42.
I have the initial impression that the center sharpness of the MHG is very good. To my eye, it is a clearly sharper and much better view than the M7 8x30. It seems to have a slightly warm/yellow cast that yields a contrasty, almost Leica-esque quality. Time will tell if the yellowish cast becomes a bother or is something that the brain compensates for - I need to try it in more conditions / environments to really say. I would say that ELSVs and SFs are all around sharper, crisper, with better color and thus do still differentiate themselves, but the MHG gets to the "excellent" level (similar to the Conquest HD in this regard), after which atmospheric interference and hand holding are going to limit me long before the binocular does.
In any case, those are my initial impressions. Unless something else arises it certainly ticks all the boxes for me and I think it is a definite keeper and will get a lot of use. I am not particularly tempted to try the 8x30CL due to FOV and close focus, though I'm certain that it is excellent and likely a bit better than the MHG if you get on with the FOV and close focus limitations.