I actually have a 1200W (Hypex NC1200) and and a Rythmik F12 sub, so I have plenty of power and bass to fill out the low end.
I like my Maggies, but after a couple of years, I'm just tired of playing with positioning. Toe in, tweeter in, tweeter out, spacing, are all so important. Getting a cohesive soundstage and even frequency response is actually quite difficult. They often have a pleasing tone to them, but not balanced across the frequency range properly. (Funny enough, I found what helped my bass response the most was speaker spacing, more so that distance from the front wall.) Also, I've noticed that at highish SPL (85+ db, 90 db peak), I start hear noticeable distortion, which I think is just a limitation of the panel.
I'm looking for more accuracy and balance, my dynamics. I listen to mostly acoustic music too.