Always keep this in mind: If the resume company you go to doesn't interview you, then their writers are probably not strong enough to have an intelligent conversation with you.
Do you want someone who can't speak intelligently with you writing your resume?
The best resume writing firms will use both a questionnaire and a phone interview. The questionnaire will jog your memory and make you think a bit about things that you haven't thought about in a while.
In fact, a face-to-face (or phone) interview helps prepare you for the big job interview. That's why any high level executive worth his or her salt will insist on a questionnaire and a phone interview.
There's no reason you shouldn't be able to get the same high-quality treatment from the company or person writing your resume.
4. Make sure you get a free resume evaluation
If the company you go to doesn't offer one, then they're probably too weak to provide a good critique. Either that or they rely on high volume (and are probably a resume "factory").
And you know what that means...
Another thing to watch for is whether they call you for an evaluation or send you an e-mail evaluation instead.
E-mail evaluations are usually nothing more than standard templates with a few words changed. A lot of factory resume companies are notorious for e-mailing a lengthy, well-written evaluation that's practically all canned with just a couple of sentences added. A really good resume company is not afraid to talk to you so that they understand your needs with maximum clarity.
5. When you call the company, do you get to speak to a resume writer - or a sales person?
If you're forced to speak to a sales person, then the company he or she works for is probably a resume "factory" that does big volume and uses "cookie-cutter" templates.
6. Is there a guarantee?
A good service will stand behind their work and offer to revise your resume for free if you're unhappy with it.
Bottom line: You'll want to choose a resume writing service that offers a no-nonsense guarantee.