Tru-Color Paint comes in two lines, spray-brush-ready and paint-brush-ready formulas. Some modelers have said they were able to thin and apply the paint-brush-ready line with an airbrush. Most paint brush colors are already available as a spray-brush-ready color, though.
If you wish to browse the entire Tru-Color line, to the left is a drop-down box labeled "Manufacturer". Select Tru-Color and all items will be listed together.
Here's a link to an IPMS modeler's experience with Tru-Color: http://web.ipmsusa3.org/content/tru-color-paints
You can also find videos with modeler's experiences with Tru-Color Paints on YouTube.