In my experience with several different manufacturers systems, simple 3-way roughin wiring works fine. Bring the line and neutral to one end of the switching, and connect the luminaire(s) to the far end. The device hookup, however, is very unlike a 3-way.
When the multi-location dimmer modules are installed, one of the travelers is used for the electronics in the remotes to talk with the electronics in master (the master is where the dimming actually happens). The other traveler is turned into one long switched leg that connects to each remote to provide power for the remote's signalling electronics.
The master has to go on the line or the load end. . .it can't be in the middle. The master is the one with the most lights, on most models, so, putting it where it is most aesthetically effective will likely take extra effort.
Derating the master is required if the master's fins are removed to gang additional units.
The one trick that helps a lot on some models, when installing the hardware, is to tag the travelers of any 4-way locations while roughing in. Mark the location each set of travelers goes to or comes from.