Regarding the scent, I don't think this factoid has been mentioned yet in this thread, and may be useful to those considering Arko:

The scent changes over time on an opened stick. The sharp lemony scent fades over several days, leaving that more relaxed, soapy, Ivory-like scent that some describe above.

Some people won't like either scent. Me, I don't mind the lemony one, but I actively _like_ the more neutral soapy one.