[Amps] Ameritron AL-82 Questions

[R. David Eagle]

Hi all...I'm looking at getting an amp to add to the toys in the shack.  I've narrowed down my search to the Ameritron AL-82 and I had some questions for those of you that have experience with them.

1-How does this amp hold up to contesting, specifically CW and RTTY?
2-Are there any common problems with these amps that I should be aware of?
3-How does the QSK option work?

If anyone knows of one on the used market, please feel free to let me know off the group.

Thanks,

Dave
KB8NNU