Most are horrible.
One of the reasons is overlap. Your hands do occasionally hit keys on the other side. You want a pair of 2/3 keyboards, rather than 1/2 keyboards. You /especially/ want a lot of the "special" keys on both sides.
Another is key action. You want proper mechanical keys.
A third is mounting. That's a problem which hasn't really been figured out. The middle hinge or fixed setup is definitely sub-ideal. Two pieces are a bit clunky. Armchair mounts are $$$.
For me, I also like having a trackpoint. I'm not saying that's common, but a lot of people want /some/ oddball feature like that. For one person, it might be lighted keys. For another, swapped capslock. Etc.
And then there's the mass of people who don't care about keyboard and buy the cheapest possible model. Split keyboards are $$$.
On the whole, the concept is good in abstract, but all models I've used have had one fatal flaw or another.
One of the reasons is overlap. Your hands do occasionally hit keys on the other side. You want a pair of 2/3 keyboards, rather than 1/2 keyboards. You /especially/ want a lot of the "special" keys on both sides.
Another is key action. You want proper mechanical keys.
A third is mounting. That's a problem which hasn't really been figured out. The middle hinge or fixed setup is definitely sub-ideal. Two pieces are a bit clunky. Armchair mounts are $$$.
For me, I also like having a trackpoint. I'm not saying that's common, but a lot of people want /some/ oddball feature like that. For one person, it might be lighted keys. For another, swapped capslock. Etc.
And then there's the mass of people who don't care about keyboard and buy the cheapest possible model. Split keyboards are $$$.
On the whole, the concept is good in abstract, but all models I've used have had one fatal flaw or another.