Make your decision when you've actually played one and not from postings on forums. I've found that many comments (not all) were people parroting what they had read on other forums and not from personal experience.
Some of the earlier models did have noise problems, but were corrected in later models.
As I stated earlier mine's a '09 model and I haven't had a single issue with it.
Being a Supersonic 22 owner.These were the three lines he said that i was referring to.All of the early problems this amp had have been fixed over time.The other lines i know nothing or care about.
There are photo's of him onstage with a SS 60 playing the III album.