Very solid sturdy construction. Nice key feel, the brown switches are responsive without being too loud.

a friend recommended this company. very satisfied with the keyboard

Normally on my computer I have an extension in my browser to have a keystroke sound I enjoy, I turned that off with this keyboard because the sound it makes when you type is so satisfying. Keystrokes are responsive in every form of connection with no delays from what I can tell between input and action, and the rgb isn't obnoxious and can be turned off if annoying. All in all 10/10 would reccomend.

its very nice super responsive very customisable and multi-purpose is great highly recommend

This white keyboard is quite lovely. I like that it isn't a black keyboard. It seems eminently configurable though I’m not sure how many changes of switches/keys it will stand up to.
Postage was quick. Another great purchase from Keychron.

Good typing experience

Love everything about it. Did a lot of research and got the Switches and Keycaps that are perfect for me. Great build quality.

Love the touch and feel. It's a solid weight which is something I enjoy but may not be for everyone

Wonderful!

sound nice keybnice, solid build. Keycaps are bit thin but I replaced them so no biggie. The RBG are quite nice. Brown switches are bit too light for me but the sound is very nice

Love its practicality and lovely colour

Very tacile, but quiet at the same time. Great sensation ever when typing

Ordering was smooth, typing even smoother. Was actually a bit of a transition, since I was used to crappier keyboards.

Lovely thock

Going 40 days since 100% charge, now keyboard is at 41% according to Windows + Bluetooth; I use the keyboard 7 days a week, 9-9-ish, backlight off 95% of the time, using 2.4 GHz 90% of the time and leaving the keyboard on when not in use.
The battery is 2 Ah Lithium-ion 3.6 V, Model 3045130.
Doing Function + B will show the battery level at 10% resolution by illuminating the number row; it lights up to the currently battery level rounded up 10%, i.e. 1-> 6 lighting up means 50-60% battery. Bluetooth gives a 1% resolution.
Keyboard wakes quickly, 2.4 GHz connects quickly, Bluetooth takes 1-2 seconds to connect. When switching Bluetooth device, the previous device connection is not maintained.
Easy to disassembly, it's just like the guide for the K5 Pro, but I'd like to add: after removing the screws, grab the stands at the back to slightly separate the plastic back from the metal front and disconnect the battery, then remove the plastic back at a 45 degree angle since there are tabs.
I love that Keychron hosts their own VIA thing so you don't need to import a json or install an application, you just need a browser (mobile browsers don't seem supported). You do need to connect the keyboard via cable to make changes/update firmware even though their website seems to suggest you can do it via 2.4 GHz.
There's an undocumented function/issue where if you turn on the keyboard with ESC pressed, it will reset your VIA changes, including lighting changes.
There's no indicator to show num lock/clear or scroll lock is toggled.
You can't set a separate lighting effect/colour per layer. You can't use the backlighting to indicate num/scroll lock toggle (with Keychron's VIA, haven't used QMK).
Powering it on, number row 1-4 will be briefly illuminated depending on what device it connects to; 4 flashes when you press a key and it can't contact the 2.4 GHz receiver.
The keycaps that come with the keyboard are not shine-through so the backlight doesn't help see keys in the dark.
There's no place to store the 2.4 GHz adapter, you could stick a magnet above the arrow keys to hold the adapter there though.