I think that the missing factor in any review of an electronic instrument's review is the reviewer's level of aptitude and experience as well as their willingness to learn the instrument.  I would say that my aptitude and experience for electronics hovers slightly below average, yet with less than 2 or 3 hours invested I was getting monstrous results with this beautiful drum machine.  The quick start and reference manuals certainly had me up and running in no ( just a little) time.  I'm extremely happy with it.