Hardwood over spruce?
To me, the important consideration here is that the top is solid cedar, not laminate. As I have come to understand it, the soundboard quality and the physical size of the chamber generally affect the sound (most importantly, volume and sustain) much more than the quality of the shell material.
For instance, choosing nearly bullet-proof, acoustically-dense, 1/4"-thick, 5-ply Baltic birch plywood for the back and sides rather than thin, vibration-responsive, solid koa might actually have less deadening effect on sound quality than a decision to go with a durable nitrocellulose lacquer on your top instead of a light tung oil finish.
Even so, what's your style of playing? Are you a stage musician? Do you need every bit of volume you can get out of it? If so, a $300 soprano might not even be enough uke for you. But, otherwise, I wouldn't worry too much about the acoustic dampening on this one. Sure, I understand that an instrument is way more enjoyable to play if every note sounds sweet and tickles your brain. But the uke in question is a Kala; I doubt you'll find that they compromised much, if anything, on the sound in the process of making it pleasing to the eye.
Now, that said, one Kala uke that *does* have me scratching my head a little is this current model of Pocket Uke:
http://www.kalaukulele.com/detail.asp?PRODUCT_ID=KA-PU-SSFM
The description says "Solid Spruce on Top, Back, and Sides with Flame/Spalted Maple veneer", but the photos clearly show spalted figured maple on the soundboard. Does that mean that they laminated a hardwood veneer onto a spruce top?!? (Or even, as the description literally indicates, that the back and sides are also spruce? Pretty unlikely. Getting solid spruce to curve around the shell would not be an easy task, and there probably wouldn't be any tonal or structural advantage to be gained for the effort.)
I have a Greg Bennett/Samick concert uke (with which I'm actually quite pleased--considering the price I paid) that has a spruce veneer over a mahogany top (that its rosewood and spruce are merely veneers is, of course, mentioned nowhere in the product information, but I confirmed it by examining the instrument prior to purchase--No surprise. . .solid tonewoods would have been far too much to expect at that price).
Now I knew that the spruce on my uke was there just for visual aesthetics (I guess to make it *look* like it's louder than it actually is), but the thought of Kala putting maple over top of an otherwise solid spruce soundboard was a surprise. Wouldn't such lamination rather negate the tonal reasons for having a spruce top in the first place? Hardwood veneer over a mahogany top, I could understand. . .but hardwood over spruce?
What's more, even ignoring the veneer issue, can solid spruce even make that much difference for such a small soundboard? (Pocket Uke is a sopranissimo/sopranino size--soprano's even smaller sibling.) Then again, maybe I have that backwards. Maybe it makes even *more* difference the smaller you go.
Done digressin', back to uke-in'