Looking to hire someone with NESTA yoga certification. Is this a good cert?

btw there are TONS of yoga instructors out there now. Studios love running teacher training because it is a big money maker. So you should find, particularly if you offer pay that is industry standard for your geographic area, that you have no problem getting a wide choice of teachers. One suggestion I would make is to visit a few stand alone yoga studios in your area. Generally speaking these places will have some of the most experienced and most highly trained teachers. Try a few styles to get a sense of what would work for your clientele. You might also make some connections to the yoga population as a whole that way. Then when you have an opening you could say, for instance, ‘I want someone with experience teaching warm vinyasa/multilevel yoga/chair yoga/Bikram/Viniyoga/Iyengar or whatever you need.