I prefer a personal pontoon over a kayak. It's more stable and easy to fish from IMO. I put a trolling motor on mine to make it easy to get up the river then float back down to your car. I'm sure it works fine in a lake as well but I use it for my river trips.
They fit in a bag and you blow up the pontoons when you get the the river. Easy to transport. Takes me about 15 minutes to assemble. Last summer I hit the upper JF after the canoe rentals stop putting floaters in that part of the river and had it all to myself. Great day of smallmouth fishing.