WP31s: is the 20B keyboard really that bad?

[Dieter]

I really like the 34s, but for many everyday applications it's simply a bit too complex, so that I prefer my 35s with its more direct access to the most important functions. That's why I consider turning another 30B into a 31s.

However, the 30B with its silver faceplate does not nearly look as nice as the all black 20B. Maybe that's why the emulator skin shows an all-black calculator as well. So I wonder if a 20B could be an option. The essential difference is the keyboard – the 30B keyboard is said to be much better. But how bad is the 20B in that regard? Would I sacrifice something substantial if I flashed the much nicer, all black 20B to become a 31s?

Dieter