I don't know anyone offhand who had Urch Cubas, but, I would expect them to be ok at least, probably decent based on his reputation. We have a really nice thread on here about Cubas, check it out. Compared to Sumatras, I think they are better layers, and are calmer, more docile, at least in my experience, otherwise, very similar. Of course the tails are lower and more spread. If you have raised Sumatras well, not much to say other than they are typically a lot calmer. I've seen Ideals Cubalayas, and other than coming small, I personally like them. The Sandhill ones are different lines than the Ideal, and seem larger, with more variabilty in type, but, both have their own strong points. It is harder to find well sized Cubalayas compared to Sumatras, most tend to be smaller than standard. I see a lot of well sized or even overly large Sumatras, overall Sumatras have more breeders and are more refined for showing and larger than Cubas, although they should not be larger. The Cubas are in more need of dedicated breeders. Most shows here have 5-10 Sumatras entered for every 1 Cubalaya.