In the good ol' days, most US companies had sourcing offices in Taiwan. Some still have, but the most of them are closing down and moving the foreign staff to Shanghai.
There are still islands of excellence in Taiwans economy, hoewver they are eroding.
Taiwan is currently hit by a double whammy, as US demand for the products is soft, while a shift of low and mid end tech production from Hsinchu to Kunshan is taking place.
You can ignore one and focus on the other, but they are both contributors to the current malaise. The latter one will change this island more than the first.
The taiwanese banking system is not that sound. (OK better than the Japanese or the Chinese one, but that doesn't mean all that much
) ODL ratios are 15% on average, however they are a function of economic growth. It is likely that they will increase further if the current downturn lasts as long as expected. Positives are that the Taiwanese are trying to reform it. Negatives are that they are taking their time.
the risk of Taiwan ending up as the Philipines is a real one. I hope that they will muddle through.