I bought the Necky Rip 12 last September to use over the winter as my sit inside kayak. It's very stable and tracks quite well. The speed isn't bad for a kayak 28 inches wide. I love the large cockpit. If you don't want water in it, just buy a skirt. The rear hatch is water tight and provides a large amount of storage.
I've owned several Pungo 120s - probably the best selling 12' rec kayak. The Rip 12 compares favorably to the Pungo 120 in every respect - impossible to tell them apart when paddling.
Pros: large cockpit, very stable, not to heavy for plastic kayak.
Cons: the Kayak I own has tracked off to the right since new. At first thought was something I was doing wrong but pretty sure is shape of hull; it is not extreme, but annoying...