i had a ml-23.5- great bass, A+ musical textures. but it didn't throw a 3-D stage- it seemed to lack "depth" using b&w801's. i eventually replaced it with a krell fpb-300 which was much more "holographic". both amps had excellent sound quality. staging can be important at times, but other sound characteristics-realism/inner detail/dynamics are often more important. of course, now i have ml-33h's, and for my tastes, these amps sound wonderful, AND i'm "swimming" in a 3-d pool of sound that comes from everywhere.
