Maggie owners (past, present, future) what do (did) you love and or dislike about them?

Mewsicbuff, your room is perfect for 3.7i's. Maggies are an extremely easy load. They just require a lot of power. I like to see 200 watts/ch.
You should start with them 3 feet from the wall tweeters to the out side and toed in just a little. You measure your triangle from the tweeters.  If the bass seems a little tubby move them out to 4 feet. Dampen the wall right behind the speaker with acoustic foam tiles.
If you require more punch get subwoofers. 
You are going to love these speakers!

Mike

Own a set of 1.7i. Drive it with a Pro-ject turntable and differential Emotiva gear. Pros are clarity, sound stage and Dynamics. They sound great even when out of position but it's obvious they are out of position. They really only "sing" when you have them calibrated to about a 3ft w x 6ft h x 1ft d window. They draw monster current and need beefy amps that can handle the draw. They love AB and don't respond well to D. They make a lot of sound but don't really dominate a room. They really need a well-dressed listening room, and need the room to be a bit live and they have to be far away from the rear wall because they are dipoles. They need subs unless you get the gigantic ones, which need even more power.
They're a gimmick but I use them every day as generic living room speakers and they sound amazing. And, when I get some good source in, grab a glass of whiskey and get them "in position," it's a serious treat. Despite their foibles they really are an incredible thing.

I have had Maggie 1.7i’s for a year or two, driving with solid state Bel Canto REF500m monoblocks, 500w @ 4ohm. They go very well together, and the speakers are my favorite that I have ever owned. Accurate and sweet! Looove them. 

Mewsickbuff I am A dealer for GT Audioworks Planar speakers that is a must audition. They are a full range planar design with no crossover, pure copper traces and can play at much higher spl’s with way better slam and dynamics. The attached video is the reference model usually reserved for large rooms.
But a lot of our customers have opted to buy the speakers and mate them with the 2-12 inch open baffle subs per side.
https://youtu.be/2ZgRiAdbDNw

Cones vs thin film speakers?  So why not both.  I have a pair of MGCIIIs, MGAs, MG1Cs, MGWs, MG on walls, DWMs, and a MGCC2.  Not all work.  The IIIs were sold as only needing a pair of ribbon tweeters needing  a rebuild.  The midranges were also shot.  The MG1Cs were given away, their dog knocked them down, and back to me they came.  The on walls are awaiting new thinking for the highs and lows that are missing.  One MGA sits under the tv, serving as center channel.  The MGWs alternate with my newest speakers, Martin Logan Clarities.  The DWM's sit inboard of the mains whether MGW or ML.  Side by side the MGWs have a tad better/more midrange and presence.  The Martins have the superior highs and 8 inch cone bass.

        I like Maggies.

I use various 200 wpc at 8 ohms amplifiers, all ss.    A DBX two way crossover set at 75.  Two 10 inch Kickers, each in a sealed 2 cuft box.  A 12 inch Kicker in a 3 cuft sealed box.  A Denon POA6600 drives the subs.  It has taken years to put it all together.

Mewsic you can try some of the Magnepans direct from the company.  Starts with the LRS model, and you can return or trade up within their policy.  Subs are a must.  If you are looking for speakers that reveal and do not conceal, these sound close to real.  If you are looking to peel the paint off the walls, stay with cone speakers for high spls.  Happy listening in your quest.