I took the Tetra 12 out for a demo yesterday, and I have to say I was quite impressed. I found it quite fast for a 12 foot boat. It was also a stable ride. I was comparing it to 14 foot boats, and while not as fast as those, I was still impressed with it. For the price, I don't think you could beat it.
It had the standard Ocean Kayak seat, which is good for recreational use -- then again, that's what this boat is designed for. The tank well in the back was roomy enough for a cooler, and you could adapt this for fishing purposes fairly easily.
Good all around kayak.