Used to be fairly good until about two years ago. You’ll find something, but good luck getting more than 16 odd hours a week. After that you’ll have to farm yourself out to other schools, and unless they are willing to apply for an additional work permit (new law states that you have to have a work permit for each school you work for, even if only for one or two hours a week - and in Tainan they do check, they have been to my school and have paid a visit to all the teachers I know at work) it’s illegal and they will deport you. I personally know of two guys that that has happened to in the last few months.
There are simply too many foreigners here for the amount of work available, schools are closing down and enrollment raters are decreasing. The same is true for public schools who have been forced to close several Grade one classes and let some teachers (Taiwanese teachers included) go.
Canadians, and more so females, are still at the top of the recruitment lists. So unless you’re a female Canadian NT$600/hour or more is very unlikely.
This is the reality of the situation, although good positions are to be found. Just don’t have unrealistic expectations, rather be surprised if you are indeed lucky.
As far as transport is concerned. Yep, public transport is basically non-existent in Tainan, except for Taxi’s. You can get a car, but, once again, good luck finding parking, even at your apartment. Also traffic gets so congested that it can easily take you an hour to get somewhere in a car at times, whereas the same distance would take 10 or 15 minutes on a scooter.
I think most folks have hit the nail on the head regarding the positives of Kaohsuing or Taipei. I know nothing of Taichung, so no comment there. Wouldn’t mind living in Taidong or Hualien, though…