My contribution is similar:
Compressors other than special expensive ones are bloody loud.
Needle guns are bloody loud.
Needle guns use a lot of air, so really check consumption against compressor output AT THAT PRESSURE, not free air delivered.
They are not nice to use, so wear shock absorbing gloves, and you will only want to do it in shortish sessions.
The suggestion about an extension lead, and a long air hose, is excellent, get the damn thing away from you.
Proper ear defenders, seriously, really are absolutely vital.
Have I mentioned its a loud business?
Based on practical experience with a hobby type compressor with a reservoir, a long extension lead, and a long air hose. I am quite deaf, and the noise of the compressor is still oppressive.