Doug Miller wrote:

Plus, the infernal noise of the compressor running
almost constantly left me with ringing ears and a splitting headache.

No ear protection?

Only used it once - would have definitely worn ear protection the second
time. As I recall, there was no mention of that in the instructions -
the compressor was only supposed to run intermittently. But the thing
didn't seal properly - that was another problem.

But, alas, taking the drudgery out of painting is a much more elusive
goal than building a better mousetrap.