Nothing wrong with a good horn speaker. It is a little more difficult to get them perfectly smooth but they do limit dispersion which improves room interaction. I would use them with a BBC curve because they tend to have an edge in the upper midrange.
As far as ESLs are concerned you have to audition those that are as tall as the room, 8 or 9 feet. These are significantly more powerful than 5 or 6 foot tall speakers and in most instances smoother than horns with superior imaging, no crossovers. They are not as efficient so they do require more power, the price of admission.
As far as ESLs are concerned you have to audition those that are as tall as the room, 8 or 9 feet. These are significantly more powerful than 5 or 6 foot tall speakers and in most instances smoother than horns with superior imaging, no crossovers. They are not as efficient so they do require more power, the price of admission.