I'm updating my post of 9/14 with the news of the arrival of my Waterman Concert. Upon further research, including the Kala site, Seafoam Green and Chalkboard Black are the only colors currently offered. I chose Seafoam Green. The strings are still settling in and I've not yet played it much, but I can say at this point, it has a comfortable concert scale, and as I said about the soprano when it was introduced, a very nice neck profile. It has the shortcomings of a plastic uke as to adjustability and the likely disappearance of fret paint and position markers in short order. I must point out the most prominent difference between the concert and the soprano, and this is big, is the tone. While it is simple and not loaded with woody resonance or overtones, it is very warm and mellow. I did not expect this; the soprano is decidedly bright. So far I like the difference. Both have stock strings. I'd enjoy hearing from anyone who has both ukes and has the same experience.