I got the scope anyway, and so far, so good. The bugs I'd been worried about don't seem to be present. Very nice and responsive. I don't have an avalanche pulse generator but one of my projects has a nice sharp edge and I got a rise time of at most 5ns from it (I'd heard 4.2 or 4.4ns may be typical). It looks like they knocked themselves out implementing variable persistance/phosphor emulation. Its never quite the same as a real CRO, but they tried.