Eh.....It doesn't sound that great. They're taking the Death Star playset's approach--which is to include a bunch of iconic locations, and condense them into small, poorly-detailed versions of themselves.
Plus, Echo Base doesn't scream "exciting" to me. I mean, what can they do? The control room, the bacta tank room, wampa cave which isn't even part of the baseand....that's pretty much it.
I'll wait for pictures to actually judge the set, but honestly, I just wish we were getting Cloud City.