The series of reviews I wrote in my search for the perfect keyboard continue to rack up dozens or hundreds of hits per week; the most extensive posts cover the Kinesis Advantage, Unicomp Customizer / Space Saver, and the Das Keyboard. The Unicomp review in particular has become a repository for thoughts on the keyboard, with 60 comments so far and new ones popping up regularly.

By now I’ve spent two years using the Advantage as my primary keyboard, and since then people have e-mailed me an array of questions about it. The latest comes from a guy who is curious about how it compares to the Das Keyboard, especially regarding the key switches, and whether his size (at more than 6’7 “) might make the keyboard impractical.

The keys on the Kinesis Advantage are “Cherry Brown” switches, and those on the Das Keyboard are “Cherry Blue” switches (if you didn’t see the Das Keyboard Review, look now, especially at the video). There’s some difference between the Browns and Blues, but I think if you gave me the Coke-Pepsi challenge by blind-folding me, putting a keyboard with Browns under my fingers and then swapping it for an identical one with Blues, I doubt I’d care. They’re a distinction without a difference.

If you said, “Here’s a Kinesis Advantage with Model M-style buckling springs,” I’d take it. But the difference between the buckling springs and Cherry switches is slight at this level of quality. It’s like the Nikon, Canon, and Sony camera aficionados duking it out over recent DSLRs. The differences between Canon’s Rebels and the Nikon’s consumer “D” series cameras are marginal. Most people wouldn’t notice. And since most pictures are being shrunk for Flickr or Facebook anyway, the importance of marginal quality improvements declines further.

I’ve used the Advantage close to every day for years, and I can’t see or feel any difference in the keys over time. Most normal keyboards, like the ones that ship with generic desktop computers, get “sticky” or otherwise problematic after a lot of use. This one doesn’t. Searching Google for “Kinesis Advantage Longevity” and similar strings (like durability) doesn’t bring up any horror stories. The Advantage doesn’t have the extreme reputation that IBM Model Ms have, but Kinesis also hasn’t been making them since the 1980s and the Advantage is, by its cost and the commitment necessary to retrain yourself, a much more niche product.

I’m not as tall as you, but I am about 6’1″, and I don’t think you’re likely to have problems with the Kinesis because of the size. Maybe if you have Shaq-size hands you might need or want larger keys, but that’s a niche case. My elbows aren’t turned in at all when I use the Advantage; yours might have to slightly, if you’ve got especially broad shoulders, but again, I don’t think the effect will be too pronounced. I’ve also seen women as short as 5’4″ use the keyboard (note: this is not a euphemism) without any obvious ergonomic problems.

One other point: if you’re having trouble with your wrists, make sure that you’ve got a desk / chair combination that lets you leave your elbows at a 90 degree angle. The top of the screen should be at your eye level. I have three books stuck under my iMac, lifting the screen to the desire height, and a Humanscale Keyboard tray to accomplish this. If you’re using a laptop and it spends most of its life in one place, try to get an external monitor, and get the external monitor at the desired height, or buy a laptop stand (the Griffin Elevator is popular). This might not be practical or might be too expensive, depending on where you work, but if you can do it you’ll have a better overall experience. Just adjusting the height of your monitor and chair might do more for you than a very expensive keyboard.

EDIT: There’s a worthwhile Hacker News discussion about this post; sometimes HN will generate thousands of visitors who leave virtually no comments, because they comment on HN itself. Anyway, the top two comments say the Kinesis Advantage is quite durable, and both people report that they’ve keyboards for more than ten years. One says Kinesis will repair keyboards that have been caught “drinking” soda. Taken together, they allay the longevity worry, especially if Kinesis offers service. It would be a major bummer to have to re-buy a $300 keyboard every five years because it broke, but it sounds like $300 also buys you high-quality keys that can take a lot of clacking.