I have never had any problems with my AX-60 . I just hope the person packs it well . They are pretty reliable and they stay in tune . If it does have dirt pots , spray them with a NON residue cleaner .

I don't use samplers that much EPU . I absolutely do not use sample CDs , I make all of my own sounds . I still use my S-612 because I will not buy anything that has no real time controls . I will NOT bore myself with program windows .