judging from their web site, they look pretty good. They are approved as continued education providers for ACE, and I hope that ACE is rather discriminating here.
I saw that they are currently offering their certification in group fitness or personal training per Groupon which makes me wonder how desperate they are for business. But they have been around for more than 20 years which is on the plus side.
I like Ariadne’s comment, though, to check about requirements by prospective employers.