First cool thing: Rose Browns let you put cherry profile keycaps on Epomaker's (and others') north-facing boards *without* keycap interference, due to the long pole raising the keycap just enough to clear the switch.
Second cool thing: it's a great switch in its own right -- the elusive heavy tactile I didn't think existed. It neither slams your fingers into the bottom-out, nor gives your fingers a jarring ride on the way back up. These somehow avoid both pitfalls, but without being mushy, or light. The (long) spring is light enough for a crisp keypress that lets the bump assert itself, and heavy enough to make bottom-out feel like a choice, though an easy choice to let happen. Despite the description claiming 1.2 mm of pre-travel, I feel the bump starts at the very top of the keypress. It doesn't peak at the top, but it starts climbing at the top. Once over the bump, it gently lets you slide to the bottom. No slamming. No jarring. No mush. It's...clean.
These feel in the ballpark of Drop Holy Pandas, but much less wobbly and scratchy stock. Gateron Silver Blizzards feel very similar, but are a hair smoother and snappier, as if they had better lubrication. Still, they're also higher pitched, so I went with the lower-pitched Chocolate Rose Browns. These are smooth, stable, and thocky enough that I didn't feel the need to lube or film them (filming would be a pain, given the unique housing). Sure, a couple in my batch of 105 were noticeably inconsistently lubed, but all in all, I'm really happy with these and hope they get more attention. For someone who enjoys TTC Watermelon Milkshakes (light tactiles), Durock Ceruleans, Ergo Clears, and Zealios V1 Reduxes (medium tactiles), these open up the world of the heavier tactile to me in a surprisingly pleasant way. Well done Epomaker!
PS - For anyone interested, you can see an approximate force curve on the Epomaker NT68 Kickstarter page. I'm not saying it's wrong, but the overall feel is "rounder" than the picture might suggest.