I have a small acoustically treated room, 12x11x9 that I had a few speakers in, from monitors to a full-range speaker. I always needed the acoustic treatments with all the speakers including the LRS+. However, with the LRS+ I found that removing the absorption panels for the left and right first reflections improved the sound of the LRS+, without any negative issues.
My only complaint on the LRS+ is that it is not as detailed as some other speakers I have had in the same space with the same price point, ex KEF LS50 Meta. However, the LRS+ was better overall for what I like, a big soundstage with depth that I could overlook the less than great detail retrieval,
A new speaker from Magnepan seems to address my concerns.
MAGNEPAN .7X, Compared with LRS+ and More! (youtube.com)