I lived and worked in Taiwan from 1987 to 1993, following 5 years living and working in Thailand.
Taiwanese people are friendly, hard working, and well educated. The island has beautiful mountains and lakes, and an excellent infrastructure. The capital Taipei is a well organised city, with top class hotels, markets and facilities, and a lively nightlife. However, if you are on a brief visit, with not enough time to explore the island outside Taipei, it may not be the best place for a short holiday.