I have used them extensively for months and I still use them. I have disassembled them both and modded them. I did more work on the FC660C because my HHKB was already silenced.
Even if the FC660C was as expensive as the HHKB, in my opinion it would still compare favorably.
It's better built. For example, it has a strong metal plate which the HHKB lacks. The metal plate provide a solid feel overall, which also translate to a better typing feel! This is subjective, I know, but I really can't see how it would be worse than no plate at all. And it has a more "solid" sound: the HHKB sounds hollow because it is indeed a hollow plastic case. I have posted earlier a sound comparison with 9 keyboards, including the HHKB Type-S and the silenced FC660C.
The FC660C has arrow keys. This makes it much more approachable for most users, and arguably will contribute to the "feel" or overall impression of the keyboard.
I think the HHKB should be priced much less than the FC660C due to the fact that it provides neither the solid build nor the arrow keys.
In favor of the HHKB, which I use and like, I would mention the minimalist design and the weight: it's lighter than the FC660C and is more adapted to mobile use.
Well I'll call you on this one. First, the price.
HHKB typs-s coming with 2 usb ports (unpowered but enough to plug the mouse), silenced mod (increased stem height), lubed stabilizers (I know not big deal but always), 6 dip switches (info on the back of keyb), and even landing pads for space bar
Now let’s look on Leo; metal plate, 2 additional keys (caps lock & control key), 4 dips switches, arrows keys.
It will require job around to make apply silent mod, which will reduce key travel (what in my opinion is killing the idea), and lube stabilizers.
Not sure how difference in the price between this two keyboards can even be questionable. Still, there is open question – if this products are worthy the money tag on them – but there is no easy answer for it.
Subjective impressions;
Fc660c has metal plate and arrow keys. HHKB is “plastic” with special layout . In my opinion, both got different selling points.
HHKB is “daily all around with you” mobile keyboard. To accomplish this, it need to be light and small. Yet, is easy to buy key replacement (expensive though) and even alternative controller to make HHKB full programmable.
I really like typing on it, my fatigued fingers (I use 87u 55 in home office) welcome light keys with pleasure.
Leo for me is striped version of TKL, the “space saver”. FN + arrow is great idea (was hard for me to make it work on mac though), is not as big as 87u, yet still provide similar (yet not the same) typing experience.
Is rather hard to find full key replacement if someone like to, but still it can be done. This is my version when I was using it (with 55gr keys):
So which one is better. For me
, HHKB for all around keyboard.
Fc660c is making sense only if you have terribly busy desk (at work/home) and needs for smaller keyboard without big difference in layout. Otherwise, I’ll advise to get Realofrce 87u instead of Leopold.
Vary similar price now, and regarding topre feeling, nothing can beat 87u 55gr. And Leo is not even close…