I have to say that when I used bread yeast with my last wine, there were several of these negative factors that I did not experience.
Firstly, the wine cleared up just fine and did not remain cloudy. Secondly, it continued fermenting for several weeks, and came to be quite dry if not completely dry, with a strong alcoholic kick. Thirdly, there just weren't any off-flavors from the wine; presumably because I made sure it was in a good temperature and took good care of the brew.
This blueberry strawberry-apple wine was 3 liters (0.8) gallons with 3 pounds of sugar. The finished product is almost utterly dry, with a faint faint sweetness in the aftertaste. Sour_Grapes tells me that the calculated SG would be 1.135, resulting in 19% alcohol if fermented to dry.
Now, perhaps it isn't quite completely dry, but it sure comes close. This is some of the strongest wine and most alcoholic smelling wine I've ever tasted. I doubt that it reached 19%, and I cannot do the math on my own, so I leave it to others to decide what the alcohol content should be. However, those were the amounts of ingredients I used, and it did at least almost become dry, if not completely dry.
So, no off-flavors, no cloudiness, definitely NOT a low alcohol (I know for a fact that it is a few above 13%), and also the alcohol utterly destroyed any bready taste that might occur.
So, I have to say that based on experience, the bread yeast doesn't always have these negative qualities. It certainly did not stop fermenting alcohol at 13%, and it certainly does not taste sweet.