I really dig the box-less character of Maggies - just wonderful stuff.
Significant downsides, however, include...
1. You really need several feet between any wall - often requiring the long side of the room only (not available to me here)
2. Sufficient cubic footage, overall. Even my 12 x 15 x 8-12' room seems insufficient for my MMG's. I'm investigating the Behringer ULTRACURVE PRO DEQ2496 to address this issue:
http://www.behringer.com/DEQ2496/index.cfm?lang=ENG3. If you are not using digital/'switching' amps, low frequency driver has terrible control and annoyingly high distortion levels as it reaches it's limit. You are almost obligated to put a high-pass filter at 60-80Hz (Maggy Mates high level or rca levels, both work) and carefully blend a subwoofer in for satisfactory sound. This puts further strain on budget and involves further room interactions. (larger Maggies have thicker/heavier frames and may not have the panel slapping problems the babies do)
So, Maggies are really a bit of an enigma. You need to do a lot to really enjoy them, but are worthwhile when you do.
fyi, my pair have top & bottom Mye Stands and outboard crossovers by Sonic Craft already done.
I'm enjoying what I have currently, and the savings involved, that I haven't gone that further step to get the Maggies really singing in my room. But, I know they can and (likely) will one day