I have one since 1975! It was of course a bit dated, but not that much (you must adjust the tuning frequently), some buttons creak a little but still very strong! great for improvisation and live, also great for white noise (sea, helicopters, sounds parallel to Klaus Schulze or T Dream! sound is unmatched, even if it is not that of the minimoog. synths digital fail to have this really handling this kind of sound and to treasure! But I am biased: I love vintage synths: DX7, Oberheim EPS ...