The Martin Logans hould be an improvement over my current surrounds, some old Phase Tech Boxes that sound OK. The Martin Logans are Frescos, electrostatics. Most electrostatics I've heard are far more directional than these, they will be wall mounted with the special hinged brackets they come with for further versatility.
They were superseded by the Fresco i which by the accounts I've read are the same except the "upgrades" are no longer magnetically shielded since CRTs are a thing of the past. Makes sense since the newer models weigh almost three pounds less than the older ones I'm getting.
We just put a Signature Series Paradigm sound system in a clients home, so he no longer needed the Martins or his Rell subs. . I'd jump on the subs too but my Snell XA-90s have four 10" subs and my B&W ASW855C 15 incher tackles any leftover low fequencies.