Good starting point, not staying point

Gloria is great if you're just starting out and aren't sure what you're doing. You will always teach with a native co-teacher, who handles classroom discipline, interaction with parents, and most administrative things. Compared to the native teachers, foreign teachers have little prep work. Once you understand the (easy) curriculum, the hardest thing is thinking of new games. You are paid in cash, and always know what's being deducted for taxes, etc.

On the negative side, the administration is very political. If they don't like you, or you're a bad teacher, they will passive-aggressively take away your hours until you leave...but you'd have to do something crazy to get fired. You are promised 8 weeks of vacation, but during holidays and times of low staffing, you may not get your vacation requests accepted. Taoyuan is not the greatest place in Taiwan, but you'll save more money than you would living in Taipei.

I'd recommend it for someone who wants to get their feet wet in TEFL and maybe save some money. There are great people, and you'll make friends and get decent support. Just don't plan on staying forever.