Joesax, I’ll try, but don’t laugh too loud if I post something ridiculously wrong :
Teahouse: kuai4 xue3 shi2 qing2
Restaurant: yan2 dao3 shao1
If I remember this correctly, the teahouse is on Ching [jing1] Cheng [cheng2] 21st street (精誠21街). The Japanese Restaurant is near the parking on Ta [da4] Tun [dun1] 19th street (大墩19街), unfortunately, I always park the car there so I never had to tell the exact street name to a taxi driver. It’s just a few steps away from the beginning of the famous pedestrian street (it might still be the same street name, but it is on part of this street not reserved for pedestrians).
Anyway, the teahouse is a really very quiet and unique place. The Japanese restaurant is more lively, nice interior, too, and excellent food. They have a room downstairs with two more private tables but I think it is for larger groups only - or VIPs? I don’t know, I prefer the atmosphere on the ground floor. These are really the two upscale places in Taichung I can recommend most, I’m sure there are lots of other good locations (maybe some western restaurants, too, I rarely tried those), but there are quite a lot of disappointing restaurants and teahouses, etc., as well.
Sorry, it’s in German and it is not finished yet (I uploaded it to an area reserved for our beta testers) and it’s not a personal homepage, anyway. If you still want to have a look, it will be available on www.satrue.lu in a few days (I hope). (No need to look at that page right now, what is there is only meant to enable the search engines to index our page).