Exceptional typing experience, though the brown switches are even more noisy than some others. But the key are comfy and a breeze to type on.
Bluetooth has been erratic at first, but it got better

My first foray into the customisable keyboard world and after deep hyperfocused research for 1-2 weeks, I am completely happy with the NJ98. Due to stock availability and personal preferences, namely wanting a UK layout with numpad and physical volume control dial/knob etc I opted for the Black/Vintage Steel Plate version, with Box Deep Sea Islet silent switches.

I have been using a standard full sized Corsair K70 Mk2 Mechanical keyboard for the past 7 years and finally got tired of the relatively loud clacky typing sound even though I work from home in a very quiet setting. The difference in sound and feel between the two is like night and day. The NJ90 is so so solid feeling, so SO quiet but not so quiet as to be completely inaudible (I do like the slight sound of gentle typing - a little audible feedback helps with typing I think). there's a tactility to the keys as well that's hard to explain but almost feels velvety compare to the standard plastic of the old keyboard. It just FEELS so good. I never thought I'd say that about a keyboard, haha. the Typing experience with the Deep Sea Islet switches is so so nice.

I find the typing angle comfortable without the flippy feet. The tiny screen is cute although obviously completely pointless. As a grown man, the tiny cat ears n eyes oddly makes me smile :/

Connectivity is fast, and instantly connected to my Win 10 PC with the wifi option and dongle. I don't game with the keyboard as I'm one of those controller enjoyers) so can't comment on gaming responsiveness but it's absolutely fine for average typing skills.

RGB is also fine, and I am not missing the shine through keycaps as much as I thought I would. Please do note that you have to read the tiny manual to understand the shortcuts for the Fn key! RGB speed and brightness Fn key selectors is good although I'd like an extra extra slow setting, ha.

The Layout: I find the 1" / 2-3cm narrower width vs standard 100% layout much better for ergonomics on my desk. The only thing I don't like and will need to work out how to remap is to replace the Pg Up and Pg Dn buttons with Home and End as I use those more. I am currently having to stop and think where the Delete key is as well - need to remap my brain. I also want to have Print Screen key back as well. And although these are mapped to the keyboard's built in function layer, I will be remapping them. Thankfully Keydous do provide additional keys: Home, end, Print, Insert and spare Delete and PgDn keycaps (odd).

The included USB cable is long enough for me, and the keycap/switch puller seems decent enough quality. They also included a helpful, slimline USB A Female to USB C Female adaptor.

Software: this is currently really quite bad - it's semi-translated from Mandarin Chinese to English but doesn't really make sense when you're coming from software like iCue. Even the "tips" blog page to guide you on remapping keys and altering the built-in RGB patterns doesn't really make it any easier. I do like that people can and have shared layouts, macros and the tiny screen's gifs however - that's quite cool. But it's still seems more complicated than it could be to use. Also the Windows "driver APP" doesn't want to load at all (I think it loads but doesn't present a visible screen as such) so I am using the "BETA" option which loads in a webpage, which also doesn't work on Brave Browser but does work on Chrome) presumably due to Brave's extra privacy settings...

A final note: Keydous' order updates could be a little better as it seemed to take 13 of the 14 days between order and delivery to update it from "about to be shipped" to "delivered" so as first time customer it's a little unnerving. BUT staff do respond very quickly to emails checking on order updates :)

Keyboard is working great but the layout is more compact than a regular ISO keyboard layout. I might get use to it but so far I don't like it.