I've got a Rhinowares grinder, which is functionally equivalent to the Porlex, mainly because it's what my local hipster coffee emporium sells. I gather that the Porlex, Hario, and Rhinowares are all equally good, and all cost more or less the same (between £30 and £40 IIRC). For the aeropress I use a grind similar to filter pourover, so a bit finer than cafetiere.