Harmony puts out some decent remotes, but if you talk to most Custom Installers who have tried them in their installations, a lot of them go back later and remove them and put something in more robust, such as your MX-950.

Do you not have the original remotes from the components? If you do, you can teach the MX-950 and you are good to go.

Sometime down the road, I'm sure URC will have the codes in their database, which may or may not have codes that aren't actually on the original remotes, but learning will get you up and running pretty well now.

Personally, I wouldn't let my 950 go for any Harmony remote out there.