They have some decent flavors especially if you get the ones without added food coloring like they sell at BCV and Wizard Labs. The little 1 dram bottles you can find locally are probably not your best bet however since those will most likely have the coloring added and probably cost more.
That said however, if you are anxious to start mixing, you can go that route but it takes a little more consideration of the contents in your flavor selections. It's your choice of course but my recommendation would be to pick a few recipes out that you like and buy the specific flavorings called for in those recipes from a reputable DIY vendor ( like Huck listed above ) initially. You can always buy more flavors later ... and trust me you will, repeatedly!
Right
@Teresa P ?