Soundstage became more expansive and enveloping, in particular with the dipole supertweeter, which was really nice. On the other hand, the precision of the imaging decreased iirc (not 100% sure on this one). There was a pervasive sense of diminished temporal precision, though, what I called transient blurring in the previous post. The bad effects were less significant the higher was the crossover set, so I preferred it at 16 kHz for the most part, but they were still there.
By the way, positioning mattered.