I've owned four pair of Magnepans over the years - MG1s, MG2s, Tympani IVs, MG3.6r. Needless to say, there is a lot I liked about them.
For most of my years as an audiophile, I switched back and forth between Magnepans and more conventional box speakers. When I owned the Magnepans, I missed the deep bass and dynamics of box speakers. After owning the box speakers for a few years, I missed the open, airy sound stage and went back to Magnepans. And I had some pretty nice box speakers including Revel Studios and Duntech Sovereigns.
I've finally found a speaker that delivers the strengths I liked about both types of speakers. I've built a set of GR-Research NX-Oticas with stereo triple-stack GR-Research subwoofers. These are DIY speakers, so not for everyone, but they have the open, spacious soundstage that I love so much about the Magnepans, along with excellent detail and dynamics and incredible bass.
Obviously not everyone wants to build their own speakers, but I'd recommend looking at some of the commercial open-baffle speakers, such as from Spatial Audio, if you are looking for that kind of sound.