These paints are just a great as the Sparks and and really live up to the name Metallic. They are beautiful colors with a great sheen to them.
Like the Sparks, they are a thinner consistency which is nice to highlighting things and it makes it easy to mix with other mediums.
Paints from the craft store are a thicker consistency, but both kinds have a nice metallic finish to them. I did compare the Finnabair paints to craft store paints and they all worked great. The Finnabair ones might have a little more shine to them, but they are all good choices. I think it comes down to consistency and what you are going to use them for.
Overall I am happy with my purchase, I am glad to have even more metallic paints in my stash. I seem to always go for the metallic and these are perfect.