Yeah, these can be good! Some adversity can make for an interesting plot, and being in an uncomfortable form can lead to more thoughts about what makes any given form comfortable or not. Also, even if the transformation itself isn’t particularly cozy, for physical or mental reasons, it can be really really interesting to explore the transformee learning how to be cozy in that form, getting comfortable with a new experience! They don’t have to like it more than their old form, necessarily, but those “this isn’t so bad” moments are so very sweet in my opinion :)
Thanks for the ask!