As long as they keep the forward sound signature of most of the lambdas with some real improvements, I suspect they will be very popular. At roughly the same price about as a used O2, I would jump on the O2 first, although I love how musical sounding most of the lambda series are. Like Spritzer said, not sure they took the design far enough, so I suspect a bit of that same sound signature as that in the Nova series may stick around.