Picked up a pair in 184 as a daily driver, and evidently they do it well... really well. You'll have to get on a GS ski to find a faster ride. As far as I can tell, they don't have a speed limit, at least in firmer snow conditions I've seen in the early season. I mounted them at +3, just ahead of the recommended line, with FKS 180s.
It actually took a couple runs to figure out how to make them respond, but man do they rip. They WILL take you for a ride if you don't work them though, as they want to go fast and carve long fall-line turns, but still respond very well at shorter speed, making shorter radius turns.
The tails are quite stiff for an all mountain ride, and I could see these not being for a less than advanced skier. On the upside, you can more or less point them straight through bumps, and they'll carry you out smoothly. Still, they can be turny, and are easy to pivot/slash for a stronger skier.
The noses have a moderate flex and a robust rocker profile, which led me to size up from prior 179 all mountain setups. Go longer, you'll be pleased. Due to the ample nose rocker, butters are pretty easy, and these can actually hold their own in the park. That being said, this is not a park ski, but they handled a few rails and boxes well. They're a bit heavy, and take a lot of muscle to throw around and slow down between features.
After a few initial days throwing them around in early season conditions, I'm in love, and will be using these for the bulk of my days on snow. Faction has been knocking ski design and construction out of the park for a few years now, and the Prodigy is no exception. Get a pair, and get them long!