Try NoMachine. IME, performance is pretty sub-par, but if it's a once in a while thing you probably don't care that much. It's also got a "clean" and "modern" UI that would look right at home on a toddler's toy. Cosigning. Works great on Windows, Mac, and Android (client only). It's been around for 12 years and has actually improved in the switch from Android native app to web app. Amazing testament to what web apps are now capable of. I've tried remote desktop, feel like its decently easy to us...