Cubalaya are lovely, love free ranging, and they lay small - medium sized white or tinted eggs. From my experience they lay mainly during the start of spring to the beginning of summer and start again in the fall and stop during winter. I do not use artificial lighting nor do I keep them in a controled climate. The meat is wonderful, and mostly white. If you purchase your birds from an established breeder, they'll be close to the right size for the breed. Hatchery cubalaya tend to be on the small size. Sandhill Preservation and Urch/Turnland seem to be the better hatcheries to buy from as they breed close to the standard.
They have a wonderful temperment and are easily tamed. They are naturally curious straight out of the shell and have little fear of anything.
If you live in an area with sub-zero temps, you'll need to shelter them accordingly. I can get away with just enough shelter to keep the rain and wind off of them, but I live in the southern US where it hardly even stays freezing for more than a couple of days in a row.
Hens seem to get along well, especially if you raise them together. Cocks, I'd say no more than two in a large flock with lots of square footage per bird, and they need to have been raised together. If you are keeping them confined, only keep one cock. Even the hatchery lines have long tails (feathers may drag the ground), so consider this when building your coop and run. They will require more space than other breeds.
If you want to know more, you can visit my BYC page (link shown under my avatar) and check out the info there, as well as the links provided at the bottom of the page.