Let's talk hardwood flooring. Who's got them or has had them? Pros? Cons?

[brutal]

We used Traffic Master vinyl wood flooring. I have pictures but it's only been a year so it pretty much looks the same. If you do tile, get a commercial scrub brush on a solid wood broom handle (the thicker the better) and it will make cleaning a breeze. Having cleaned tile floors hundreds of times in restaurant kitchens, a stiff brush will make it a snap in a residential home.

Despite some negative reviews about the glue version, I'm planning on installing the Ultra (click-lock) in my RV. Seems the key is to ensure a proper float to avoid gap during expansion/contraction. The only thing I'm not particularly liking is the 200 lbs it will add to my tow rig, and weight=$$$ in fuel. I'm already pushing it with the change from jet-ski's to boat.

I have a wood floor, but the boards are a composite with solid wood on top, and layers underneath that kind of look like OSB or fiberboard. The floor is not as tough as hardwood. My dog's nails (which we keep trimmed) have scratched and gouged the floor. If we were going to do it over, we would get real hardwood.

Sounds like cork flooring.