I had a 5 nights stay at the Evergreen Hotel and was pleasantly surprised and very impressed by the high quality room (which was in great condition, very clean, and very comfortable) and most especially with the high quality staff who work in this hotel (all of whom are very professional, courteous, friendly, helpful, and most of them could speak fluent English, which is a huge plus).
If/when I visit Taichung again, I would choose to stay in this hotel again, and if you're having a hard time choosing what hotel to stay in while visiting Taichung, I would highly recommend that you pick this hotel and make your booking now. Definitely a 5-stars hotel and a 5-stars experience.