Hows it doing.. My wife and I just bought our first kayak in July. When we went to the dealer they tried to order us the outfitter tandem at first but I insisted on the tandem for a couple reasons. The first reason was the longer length of the tandem seemed like it had the potential to be a faster boat than one that was shorter in legnth. The other reason was the stated ability of the tandem to carry one hundred more pounds of payload and that seemed like a good idea for long trips on the water and also it might be somewhat stronger and maybe more durable as well. The only drawback to the tandem was putting it on the roof rack. We have had to struggle to get it up there at times but have since figured out our routine a little better. That being said we have been very happy with the tandem model out on the water. The boss sits in the front and I do the steering and sailing from the rear. The point you make about two single boats is valid, yet with the tandem you are always on the same track. When she gets tired I can just keep peddaling and move the boat along while she puts her feet up, although somewhat slower, its better than having to stop or worry about one person getting to far ahead of the other etc etc. So in that respect it keeps things together on the water. When both parties are pedalling the boat moves along quite well. Plus when you both jump on the pedals the boat cranks up in a sprint when you want to wake ride or catch a wave. I have tried to solo the tandem and it works just fine with one person, but put some weight (gear) in the front as the boat seems to track better with fewer course corrections when the bow is cutting through the water a bit. The same holds true if you weigh more than your wife , try and balance the weight fore and aft and it seems to hold a better line. About being in the same boat..everybody has their moments now and then..but for the most part its been a blast. Hopefully you can get some feedback from the outfitter users before you decide since I cannot give you a first hand account on that boat other than the published specs..etc Hope that helps some . If you have any other questions let me know. 
-kepnutz-
