I'm really happy with my M50s also. They do great for classical and for movies, but my listening room is quite a ways toward the sucky side of normal, so they aren't living up to their full potential for serious music listening in more intimate venues.
In our old house our M3s worked beautifully and sounded great for all music styles, and they are very similar to the M50s in their presentation. If a person had a preference toward a slightly more laid-back, yes; and "pleasant" sound, the M50s are a good choice!
