To me, a lot of his designs are a little busy.
Sometimes I stay at the Imperial Hotel in Japan, which was designed by him. At first, it`s interesting to see the woodwork and layout, but soon the patterns start getting a little busy and you ignore them. Since he uses the same type of patterns all over the place, it gets boring too.
I think this is a shot of the old building designed by him. It looks very similar to the Japanese Prime Ministers building (like the White House) which was also designed by him. Lots of repetetive geometric patterns

I think this is one of the hallways in the hotel. Again the same patterns and lines all over the place. You can see the same patterns in the furniture too.
