Is anyone still using Velvia 50?

I have just been given some nearly outdated packs as a gift. My experience with this film is decades old and relies only on 35mm with a lot of bracketing.

Found excessive discussions on the E.I. Their seems to be no clear current opinion whether ASA32, 40 or 50 or is the right setting.

Is this just a pleasant chat indicating that this film needs careful exposure and prefers low contrast subjects or is it really slower than stated by Fuji?

BTW, I know already that testing yourself is the best way to go but for the few sheets available it's not worth the effort...