One more reason — should any be needed over and above the substantial premium on your lunch bill — for sitting at the counter at Yoshihashi, rather than in one of the private tatami rooms. You get to admire this impressive artwork: one of Hiroshi Senju's trademark waterfalls.
Here's another of his paintings, from the Senju Museum in Karuizawa (as featured in the excellent Spoon and Tamago blog)...