I originally bought this for my Fuji camera. The price was great, I'd had one previously and I trust the brand (less fakes around than, say, SanDisk or Kingston). I have no idea what Class it is (it'd be nice if Amazon showed this) but I'd guess Class 2 or 4.
Having had problems using Micro SD cards as back-up in my DAB radio (possibly a SD-HC issue?), I've started using this as a back-up now and it works great, just as well as my other Panasonic card.
The previous one did long, hard service in my radio, lasting a few years of almost daily use, giving no problems at all. I know they're all pretty much of a muchness but I'd still recommend this.