I bought a pack of the Fibre in 5x7 but I haven't cracked it yet.
I've always had good experiences with them but I know a few have gotten some colorshifted film recently.
They are always upfront with the dating and such so if you're buying expired stuff you takes your chances
I know this doesn't apply to the paper situation (or help you out at all ) but thought I'd throw it out here anyway. I've had good experiences so far with my dealings with them and would recommend them.
Plus they are an advertiser/sponsor here on APUG.