Are Rotel amps and preamps any good?

Rotel have kept costs down with Chinese manufacture, some of their Power Amps are ok mid-fi products at reasonable cost. The Michi Power Amps were quite good. They generally have a tendency towards being bright. They lack the transparency, spaciousness, air and overall resolution, musicality and dynamics of higher end Power Amps. They have a pretty good rep. for reliability.

The Pre-Amps are best avoided IMO.

I've generally found Rotel pre's to lack transparency and musical involvement.