We have a recently acquired
Zuchon (looks like this:
http://puppydogweb.com/gallery/bichonfrises/bi chonfrise_atkey.jpg)... a cross between the Shih Tzu and a Bichon Frise... a real experience for me, since we mainly have working dogs here in the western U.S. However,
Mrs. C. made the decision in a way only she can. We got the dog when she was 3 months old and is now 7 months. Every thing you had heard about Shih Tzu's applies. We're still in the process of house training. She does pretty good, but often sneaks off to a carpeted room to defecate. For a while she had the disgusting habit of eating it. Only after trying the usual pineapple added to the diet and finally some powder did we seem to break that habit. She does require trimming about every two months. When Mrs. C's back is turned, I instill a little respect in the dog for me as pack leader and we get along just fine. (Nothing harsh, for the soft hearted on here).
Fortunately, the hair isn't quite as long as the Shih Tzu and she doesn't shed and is hypoallergenic.
Every owner I know says about the same thing. One additional item is that, while the pug face of the Shih Tzu has been modified by the Bichon Frise influence, all Zuchons have a noticeable underbite. The lower jaw is about 1/2 inch longer than the top. So far Mrs. C and friends find that cute (along with the dark eyes)... frankly, I sometimes feel the urge to see how she'd get along with our Blue Heeler stock dogs... especially the oneeyed, stiff legged, scarfaced one we call
Dog-Dog (He's a pup of a previous Blue Heeler neamed, appropriately
Dog)
Best of luck!