Mr. Color acrylics

Has anyone ever tried using Mr. Color acrylic paints before? I same someone use them in some personal custom work online and the paints looked pretty nice.

How is it compared to other brands of acrylic paint, like Testors or Games Workshop?

Really nice metallics, brushes nicely. But suffers severely from "glues the lid to itself" or "dries out in the bottle" in my experience.

Gotcha. So it's meant to be quickly used up then or bought in small batches.

Thanks for the info.