Xamarin.Forms might not be great if you want to create a beautiful app that performs very smoothly, but it’s pretty sweet for making multiplatform business apps for use in-house (as in: not sold on app stores) imo.
Right, internal apps are the sort of thing I think fall in the 'subset of problems' its good for, but as soon as you have a design guide to adhere to (i.e. you aren't just shipping the out-of-the-box configurations) its buggy and painful.
