Elegant,
Not to make your decision more complicated, especially since you've received some excellent advice, but I have and love a Hamano soprano. I can't speak for the concerts, although I imagine their tone would be similar. It's the one (so far anyway) I can't bear to sell even though I've since purchased more higher quality ukes.
Best of luck with your search.
Good to hear that before and not after I've purchased it. I still have plenty of time to make a decision, but it feels like Kala's going to be my first not cheapy ukulele. Though, I admit I couldn't drop the Hamano ukulele from my mind.