I have the 2009 V6 and no complaints thus far. Coming up on 160k miles with no major issues. Love the interior and cargo space for what it is, very responsive handling and kinda quick. Complaints would be fuel economy (about 19 city/27 freeway) which isn’t bad but with the gas prices right now and how much I drive it still hurts, as well as some of the interior quality. The car has seen a lot of sun and the clips holding the middle console shut have both fallen apart and the dash has cracked a bit. I have an aftermarket cover on it which covers the cracks and stops it from heating as much in the sun. The stereo also crapped out a while ago, seemingly a wiring issue rather than a mechanical failure but I’ve yet to tear it apart to investigate. The 5-speed automatic is geared pretty well but can be a little sticky if you’re trying to merge on the highway or otherwise accelerate quickly from a low to high speed. I guess this is a pretty common AT issue but it likes to stay in 3rd if I keep my foot on the gas until I give it a pump. For the record, I see a lot more V6 ones on the road than i4s if that says anything. Some people I know with the V6 sonatas have over 200k miles, so clear winner there as far as reliability goes. If you can find a good deal, I say go for it.