Probably not wort your money, hacky and not reliable

Too bad, I liked the idea, it worked for a while, but the thing breaks often, after an upgrade, or just for no reason. Not worth the headache. Cant use scale resolution while its enabled on my MBP Retina, scary message saying "Uh, oh, sorry, we have to reinstall". Seriously, thats not a mature product.

Yann.B about Duet Display, v1.2.0