I'm using the Marantz remote that came with the SR7000 receiver, as well as remotes from Sony, Yamaha, Mitsubishi, Panasonic, One-For-All, and Toshiba. It seems pretty responsive, but it's hard to say since I am in another room, and cannot see the response at the location of the equipment. You need to position the receiver so it is facing the equipment if at all possible.

I'd like to hear from anyone who has used a Pronto through the PowerMid as well, as I want to upgrade to the Pronto in the near future.