The .7 was considerably better sounding than the 1.7i in my room, despite the room dimensions being better suited to the 1.7 in theory. Yes, the 1.7is could dig a bit deeper in the bass, but that was all they could do better. The .7s had superior imaging, coherency, midrange and bass dynamics.
Best thing you can do is attempt to find a dealer that sells multiple models and can facilitate an audition.
The 3.7i and above have the true ribbon tweeter. It is indeed better sounding in the highs than the lower models. Unfortunately, it doesn’t have nearly the coherency of the .7 or LRS. Definitely doesn’t do mid-bass punch as well as the .7 either. Some of the Maggies are downright anemic when it comes to playing certain genres like hard rock. You can attempt to ameliorate that by adding a sub or two and crossing them over at the mid-bass freqs, but most subs cannot integrate correctly due to the dipole design of the Maggies.
All Maggies are incredibly finicky about placement. For example, a couple degrees difference in toe-in can make or break their tonality. IMO, there are dynamic box speakers that do nearly everything better for the same money and less fuss.
That’s just my experience. YMMV and all that….![]()

