DD, My experience would be similar to Tony's, the other tripping Texas Dr.  ;)
Which is using it set up as a tandem. Reviews you've gotten are right on.

But the outfitter also paddled the same boat as a solo. Since the seats can be put about anywhere you want. His was slightly forward, but not centered like a true solo. Trimmed the boat with gear. Seemed to work great. Had a bit of a banana shape cause it flexed some. He used a kayak paddle for a better reach and no switching sides. The seats clip into the bottom support poles with some flat webbing straps to help hold it in place.

Besides Tony I have a number for the guy who's a rep for PakBoat and goes to Canoecopia for them. He did the Scandinavian Arctic trip last year with Cliff, Tom from Minn, and the owner. Also was my tandem partner on the Coppermine trip. Let me know if you want any help contacting him.

They paddle OK, better then people might think. Best part is how they load into the float plane. Giving you some more economical options getting there and back.