Sorry again, it's Thailand not Taiwan. I'll shut up now.

If it were me, I will buy one from the lower-price range of a major brand - Brother, Singer, etc.
Reason being I'd rather not lug a transformer around my sewing area, which tends to get rather crowded. So this machine will only be used for my stay there.
Personally, I find products made in Taiwan (not PRC) of good quality. I am curently using a Taiwan made low end Janome. It has served my very well so far, piecing, and simple FMQ.
Depends of which city she goes to, major cities have everything - Walmart, Carrefour, Ikea, etc etc, just like any Western city. I am sure she will be able to find something that suits her needs and budget.

Thanks for your comments... When she gets her sewing machine ( it'll prob take a couple of months), I'll let you know what she decided on!

Janome is made in Japan and Taiwan -- my Horizon is made in Taiwan.

A friend of mine who was a from China said the items that they make to sell in China are a better quality than the items they make to export to the United States. I don't know this for a fact, but this is what I was told.