Maybe I was getting a little hyperbolic with the articulation, but it's good enough (no ankles, but everything else...okay, no wrists either, but still...). The sculpts are all unique. They've even got distinct skin texture, different knee-pads, and little details on their shells and, um, whatever turtle fronts are called.
In any event, they're high quality and much heftier than Star Wars figures, at a lower price.
(Lando, your pic is of the bigger scale vintage repros; the ones I got are the ones in smashitwitdaclub's link...and they're really cool).