RR990 lights up anytime it is touched, so reading it is easy even in the darkest of rooms. Once taught, it controlled my entertainment center better than any single remote of the bunch. I really like it. Rotel had a brilliant idea in its programming mechanics. It is the first remote I have seen that learns from the bottom end and plays from the top.
Most remotes have to face each other to teach and learn, making one hard to read.
Not so with RR990. You can read both while programming. Marantz has a remote that will make your head spin and your system jump. Besides the dazzling look and feel, it has great functionality. Obviously, as a gizmogeek, the Universal SL-9000 and Rotel RR990 were my two favorites.