I'm squarely in the single driver speaker camp after auditioning a bunch of speakers including Atohm and Davis Acoustics in a shop in Paris.
I just think that single driver speakers sound more natural/transparent. It's a night and day difference. 2 way or 3 way speakers sound like they put all of their efforts in the bass and treble with micro-details. But the voices and midrange sound a bit veiled. Your brain and ears naturally adjusts so it's not an issue.
Anyways I was floored by the Audax AM21 LB25 kit designed by Yves Dodeman. You can buy an assembled pair from that Paris shop for approx 2,500€. Everything is made in France so it's kind of a bargain compared to famous brands like Focal which command a higher price for the same quality. The seller kinda hinted that I needed a larger room for these speakers so I went with another model.
So I purchased the Closer Acoustics OGY last year and I'm still grinning to this day. They have the fastest, cleanest bass with some extension (but not subwoofer levels) thanks to the plywood transmission line cabinet. The midrange is scary clear. And the highs are bright but non-fatiguing (unless you push the volume too high unconsiously, which is easy to do because they sound so clear and natural). So the OGY are perfect in a smallish room at moderate volumes. I will say that they're not the most dynamic for orchestral music, you might want larger cabinets for that. On the flipside, the OGY is so easy to drive. Even the cheapest, nastiest Tripath chip amp will drive them fine. But you'll gain smoother highs and deeper bass with a decent A/B amp or tube amp.
Compared to Atohm, Davis Acoustics and Dynaudio bookshelf speakers the OGY just sound less veiled. But the Dynaudio and similar brands have more bass (but way slower bass), sound louder and more dynamic. So it's a design tradeoff and it's tempting to have 2 pairs of speakers for different genres.
I would love to audition the Pearl Acoustics Sibelius one day. It's funny how they use much cheaper drivers than the OGY but cost twice the money. I guess the cabinet and size have a bigger impact on price.