Well... I've owned Maggie MMG and had some old Quad 57 ESL's for awhile. I was helping a buddy repair one. I have one and three PI's now. The ones aren't stock, different tweeters. I have the Transcendent SE OTL at a mighty watt and a half per channel.
I thought the Maggies were good until I lived with them awhile. I think Maggies lack even drive, and I'm sensitive to that.
The Quads were nice, but lack dynamic range.
The one PI's and Transcendent really sound good together. My wife dropped a hardcover book on one of the three PI woofers. Crunch! I never got to try them with the TS amp.
To make a long story shorter. Transcendent amps are excellent. PI speakers are wonderfully dynamic you can't go wrong. Unless you let my wife near them.