The linked paper did look at SDXL Turbo, and found that the images were about as good as SDXL and better than a lot of models that would have been popular a lit

The linked paper did look at SDXL Turbo, and found that the images were about as good as SDXL and better than a lot of models that would have been popular a little while ago. The compromise from using it, if there is any, is hard to detect. But it is much faster. But the difference is academic; progress is so fast that it is reasonable to expect all these models will be obsolete in a year or two.