Update: One week laterI've been using this keyboard for a bit over a week. Without exception, it's the best keyboard I've used for the last 30 years.The switches and keycaps are replaceable, and the switches are rated at millions of keystrokes. I doubt that I'll be around long enough to have problems with keyswitches - but if I do, I suspect that there will still be key switches that I can swap into my then ancient keyboard, and keep it working.I tried a K8 Pro - a similar keyboard without the numeric keypad (you can probably find the review), but it had what I considered to be a fatal flaw. (It was to me, at least).The issue with the tiny switches may be one of little consequence: you may only have to switch between Mac and Windows very rarely (although I expect that I might at some point), and it's easy to figure out the operations of the switch that toggles between Wired, Off, and Bluetooth.I've found that I've even made a subtle change in the way that I use a keyboard. I do crossword puzzles. With my other keyboards, I used the arrow keys to move to open boxes where I wanted to place a letter. Now, I'm just typing whole words -- this keyboard is just EASIER to use.If you have small hands, perhaps, you may find that the keys feel like they're too far apart - but for me, this is the right feel.I may have mentioned the lighting on this keyboard. To me, putting the white lights under the keys make little sense because you can't see the lights through the keycaps. If you like distracting lighting patterns under your keys, there are a lot of choices. My preference is that they're on when I use the keyboard. The lighting doesn't add much - you can't see the keycaps in the dark, so even if you're a touch typist, you still may want some light in the room when you type. I think that the lights were probably an item to be checked off a list in order to compete with the other keyboard manufacturers.For me, the lighting really doesn't add much. But, for me, I expect that I'll be using this keyboard until it falls apart (not too likely), or until the letters on the keycaps are worn down (they're easily replaceable), or until I'm no longer able to type, or I'm dead. It's that good.Original review:I don't know if I've ever reviewed a product so soon after I got it (maybe an hour), but I'm making an exception here.I'd forgotten how BIG a Full Size keyboard actually is - it's pretty big, and an inch or two higher and wider than my previous keyboard - which was also supposed to be full size.The Keychron is a big keyboard, and it weighs about as much as a small laptop computer. BUT it's solid.Because it's wider, I have less of an issue with my fingers clumping together when I try to type. (My fingers span almost two octaves on a piano, so it's not real comfortable keeping them together to type on a laptop or small keyboard.I was looking for a keyboard with a solid feel and easy, accurate typing - and this seems to be it.Ii was looking for a keyboard with Bluetooth that can handle multiple devices (say, for example, an iPad, notebook computer, and Mac or phone). THIS ONE DOES IT.This particular keyboard can be customized. Downloadable software will let you remap keys and create macros (I haven't tried this yet). The keycaps can be removed, and even the switches under the keyboard can be changed.All things considered, the keys give good feedback and aren't too loud or clicky.I have a few issues with this keyboard:The keyboard came with a card (okay, a wide printed paper) that was completely unreadable to me. The fonts were just TOO SMALL. I went to the website to learn more about the keyboard, although this was also on the Amazon product page.Two switches on the back of the keyboard - one to switch between Bluetooth, Corded, and off, and the other to switch between Mac and Windows layouts - are also small and, to these eyes, have labels molded into the plastic that are also unreadable.Printing a manual that can be read by the user would be a nice touch.---A few things - one of the reviewers complained about the battery - and it almost seemed as if he thought it needed replacement when it ran out of power. This charges over a connection to the computer. It takes quite a while when the battery is fully empty.Another reviewer wanted more variety with the backlight -- there are keys that will scroll through a variety of lighting schemes. One turns the light off and on.This is a solid keyboard. It's easy (for me) to type on. I'll eventually change the keycaps from Mac to Windows (although this isn't usually necessary - I used a standard keyboard for years, remembering that the Windows and Options keys were in the same spot on the keyboard.Something I haven't seen on a keyboard until I got this one was a key that activated Siri or Cortana.After I've had a while to use this keyboard, I'll probably update this review. For now, I'm happy with this heavy hunk of keyboard. I don't expect this to change.