I've never worked with anything else so I am really not affected, I guess.
It is a pain in the ass when you wire something, but I honestly didn't have many problems with my setup (BX). I have Homeseer on a 2.4gig somewhat dedicated PC (I use my laptop mostly but occassionally use the Homeseer PC to surf a bit) with a CM11a, Leopard II, a Leviton Coupler and a W800RF antenna. My x-10 works quite well in the house. Then again, my house is not large (nowhere near Rupp's status, lol). I am upgrading to a T103 computer interface when Martin gets them back in stock at Automated Outlet just because I would like to have the best interface to avoid any issues and the posts I read comparing it to the CM11a helped push me over the edge. Anything to push me closer to perfect response helps the WAF factor.
Unfortuanately, not having the coupler installed (as I siad above) is KILLING my x-10 transmission in the house.