I don’t get regular products from Sakura, but they are very generous with their products. I posted a drawing I did with their gel pens on black paper and they asked to do use it for promotional purposes (though I don’t think they ever did). In return they sent me a whole bundle of stuff. I turned around and reviewed and gave some of it away. So now, they contact me ever so often and ask if I want to try something new.
I haven’t had time to use their stuff as much recently, so I haven’t heard from them lately.