Yes, the Ergo-Assmaster is a fine product.
But what you are forgetting with all this talk about furniture is the key element in master programming—hats.
Every wonder why almost all diamond-cutters are Orthodox Jews? The hats they wear compress their brain waves and enable them to concentrate on the task at hand. Similarly, there are many good programmers where I work, but they are not as good as they can be, because they do not wear hats while they code. They are leaking brainwaves and losing concentration.
I hope that you will take this opportunity to rectify the situation and start wearing hats while you code. Just a word of friendly advice.