Here's my review:
After years of buying/selling/collecting keyboards, I'm surprised by the fact that my favorite keyboard to type on currently is the Royal Kludge C930-87 RGB (there's also a version without LED backlighting, as well as have 35g, 45g, and 55g versions. Mine is 45g).
When I first got into mechanical keyboards, I preferred the very tactile ones, and if that meant the keyboard might be loud (buckling spring, Cherry MX Blue), I didn't mind it too much, because the overall impact was more visceral and fun. But once I've experienced the much quieter Topre RealForce ergonomic weighted silenced version, I much preferred the peace and quiet while typing. However, the ergonomic weighted version wasn't tactile enough (due to the keys with lesser weight), while the 55g version was a little heavy for my taste. There were other switches there were kind of in-between, with enough tactile feedback but not too noisy, such as the Matias quiet switch, Cherry MX Clear, Leopold's 45g Topre. I would have been happy with those, but then I got the Royal Kludge C930-87 RGB, and it instantly felt "just right," sort of like the Goldilock and the Three Bears--I found my keyboard. This is probably the one keyboard I'll keep if I have to sell off my entire keyboard collection.
The reasons I love the Royal Kludge C930-87 RGB are:
-Although it's a emulation of the Topre switch and many consider it "not authentic," it is similar enough that I don't really care.
-It's about as quiet as the silenced RealForce Ergonomic Weighted keyboard, but it's more tactile (only because it's not ergonomically weighted).
-It's not as heavy as the 55g Topre.
-It's 45g, and feels slightly smoother than the Leopold 45g Topre, and quieter (less high-pitched clacking). The initial resistance is slightly lower than the Leopold Topre (not as crisp), but the weight feels similar.
-Overall, it just feels really smooth, quiet, and has just enough tactile feedback to feel good to type on, but doesn't call attention to itself for being too heavy.
-It uses Cherry MX stems, so you have lots of keycaps to choose from.
I'm not a fan of LED backlighting that will spill out between the keys and distract from the actual legends, so I did a mod where I took off the keycaps, then used black acrylic paint to cover the transparent housing. This provided enough blocking of the light spill to make it a lot less distracting. And if you don't like LED backlighting, there's a version without it, or you can just turn it off, as well as put on your own choice of Cherry MX compatible keycaps.
I know keyboard preferences are highly subjective, but I just wanted to share this with all of you, in case some of you are looking for a keyboard with similar characteristics.