Pretty much as you say. Though I wouldn't describe either of them as 'coloured', just narrower in bandwidth than a 2-way would be, and somewhat limited as to max SPLs. But within those limits, they are, IME, something rather special. I think it's down to not requiring a crossover, so all those reactive, and phase-meddling elements disappear. The result is an immediacy and a naturalness which can still raise the hairs on my arms and neck, at times. The reduction in bass is not such an issue for nearfield, IME, and the benefits easily outweigh the lack of welly low down.
I currently have the Tozzi 2s doing duty on the telly (via a NuForce DDA 120amp) and the realism is a bit special, even for an unremarkable telly sound source. Plenty loud enough to give more than enough for telly listening on pretty much everything except, perhaps, the Proms.