How to verify paint job
Plainly, not 'as good as it gets', but the question to ask is, "did I get the quality of job I paid for?" If you paid a mega premium with a contractual understanding that you'd get a level 5 job, that's bad. (Something to consider is that painters aren't exactly drywall tapers.)

If you paid a normal price, then perhaps you can think about ignoring it. (Once wall coverings/curtains/furniture come in, everything will be much less noticeable. Especially curtains.) If the sheen of the paint is eggshell or glossier, you could consider going to a flat.