You are getting a cheap paint job.  Personal recommendations if probably the
best way to pick a place out.

an average paint job should run you about $1200-2000 for the whole car.

Given the price, I guess they must paint with mops.  Figure around $2k for a
decent job.

Wrt others who have said that this is a cheap paint job, the body work and
labor should bring it up to an expected level.  A car like this is likely to
need a considerable amount of body work to get rid of small dents, and the
chips will all have to be sanded out, or it will not look right.  One thing
that is not clear from the ad or from your posting, is why the separate
labor charge?  Is the $837.00 paint and materials only?  Normally I would
expect a firm quote of X dollars for paint, materials, and spraying, plus
"labor" for anything else that needs done.

Since this is not their top of the line product, I would be concerned about
the quality.  Ask to see a car that has been painted with this process.
They should have a customer's car on the lot or be able to tell you when you
can see one.

Saludos cordiales,

Earle