It loops pretty perfectly for me. I really like it.
Good for you on making your own sounds. I think you're right to some extent that people rely too much on preset patches; they push a key down and think they're Mozart when all the real work was done by someone else.
But I wouldn't be too hard on people who use presets. What counts for me in the end is what they do with the sounds; how they're organized and used. To go back to Mozart - I think it would be silly to criticize Wolfgang for writing a flute concerto just because he didn't invent the flute.