I bought my first kayak last August, a tandem, to use with any combination of my three small boys. It was the right decision for my situation, but I have found it to be an uphill battle to outfit it for fishing. As one would expect I yearn for a single and will probably buy one at some point this year. That being said a tandem is enjoyable if you accept it for what it is and don't insist on making to everything. In my opinion there is no perfect tandem, so research them all and choose the one that works best for you.
Not a great pic, but here's my FF setup:
