The Kona I put in my daughter's tiger quilt (made in the 1990's) way outlasted the other fabrics I had with it.
I've cut WAAAAY back on my fabric buying in the last few years, so my info may not be up to date- but back then, not all the bolts of Kona (at Hancock's - or Minnesota Fabrics, as the store in that location was known then) that had the same color name on the end of the bolt were exactly the same shade of that color.
I don't know if there were variations in the dye lots then or not - I'm thinking there were.
I don't know if that is still true or not.
I do like the Kona, overall, but it seems to have a bit more "heft" to it than some of the other quilting cottons.