love love my CCD, have been using it for over a year now I'd say. No problems with paper taint for me, the oxygen bleached papers I get from Coffee Alchemy (also available at Market Lane) don't have any noticeable taint at all. Brew parameters are 20-25g (depending on the coffee & its freshness) in 300ml of 95C water, 3 min steep time no more than 45 sec draw down. I don't bother with a bloom time or anything of the like, given the CCD is a full immersion brew method with a long steep time I abandoned it pretty early on. I didn't notice any negative impact in the cup so never went back to using one.