Minwax wood putty was recommended to me for filling small cracks and screw holes on some bookshelves that I built. It smoothed out the rough places in those woods, but it doesn't blend well with the wood at all. The kind I got said that it was stainable, so I thought that the color would blend well. But the stain didn't really change the color of the putty at all, and it sticks out very obviously against the darker stained wood (I used a light colored stain, but it is still a good bit darker than the putty turned out). Overall Quality Unlike some other comments I have seen on this product, I did not have any problems with the putty drying and hardening. It's not as hard as wood, but it is plenty hard for filling in small cracks or holes. So it can be a good filler in that sense. But I would only recommend painting it. I wouldn't try staining it again. Durability On the positive side, the putty has lasted for a few years without any problems. The bookshelves don't receive any direct sunlight or anything that might damage it. But it hasn't cracked or peeled or anything like that either.