This was the Native I tested, a stable fishing/dive kayak.
Also two Hobie Mirage drives, a 12ft plastic and 12 foot inflatable.
I think the Hobie has more power, but both were more sluggish than I expected after hearing all the glowing reports how the Hobie was so much better than paddling. Both felt like I was peddling through soup instead of water. A paddle is still better for quick response and paddling a sit-in kayak still seemed to use less energy and was far more elegant. The peddle drives aren't even close to a sliding seat rowing shell.
Of course, all peddle kayaks I tested were the fairly stubby type.
This was at last weekend's "PaddleFest" in Fremont, CA. Great event and a Must Attend for anyone toying with buying a kayak or canoe or paddleboard. For $10 you get to try out over 100 different boats in an all day event. The next one is in Sacramento, CA in June, with "dozens of boats".
PDF and paddles of all sorts provided, lots of manufacture's reps on hand to get your boat adjusted if needed. No waiting otherwise, just grab a boat and launch, paddle as long as you want, grab another boat. All this was from a nice sandy beach in a nice park, so you could walk barefoot no worries.