My experience with Gigapixel is inconsistent. On some images the results are amazing. Fine, semi-linear details such as hair, feathers, mouths, etc. often render superbly. The details AI Gigapixel manufactures from nothing look realistic. Other times - I've seen it most often in eyes and textured fabrics - the added sharp details are unnatural and visually jarring. A enlargement made using traditional interpolation tools may be soft in comparison to Gigapixel but is visually preferable to a model with demonic eyes or clothing afflicted by leprosy.