I have not had the opportunity to add Sailor ink to my collection. Physically no room to add more colours and not ready for the conversation: you are bringing more ink home!
In 2010 Sailor updated their offerings with a new ink and bottles.
The new colours include: Peche, Ultra Marine, Epinard, Sky High, Grenade and Apricot.
I can't comment on personal experience, but some of the reviews I read about the Sailor inks are that some colours are alkaline. Inks with strong alkaline levels can break down organic resins, which include some celluloids that are referred to as vegetal resin. OMAS made some pens with this material.
I think price and availability in the Canadian market may make using this ink lower down on my list.