Are you looking to completely automate the process of posting ads on Craigslist? Then you should consider choosing Craigslist ad posting service. Let me share with you few useful tips that you should consider before choosing any company.
Always make a research to compare few services like that. Contact each of them and ask for prices and requirements. Some services may require providing ad copies, titles, images, accounts, etc. The price is playing a big part also. Not always the cheapest price is best. Some of such services are providing poor ads, where most of them are getting flagged eventually.
Make a requirement with a service that you will pay only for live ads. In this case you will know that you are paying only for ads that are giving you traffic. It's actually very important, you don't want to pay for ghosted ads. Some Craigslist ad posting services follow this requirement naturally, but some not.
Ask company to provide any testimonials, contact to last clients. Most of them shouldn't have a problem to provide them and you will make sure that they're legit.
If you are ordering bulk ads on Craigslist always ask for a discount. Most ad posting services shouldn't have a problem to give you 10% or more discount price. Tell them that you are looking for a long term relationship and will order much more ads from them in a future.
Craigslist ad posting service should provide manual ad posting. In this way you will make sure that all ads weren't posted using any automated software that could get your ads flagged more often. Spamming software is the main cause of ad ghosting / flagging.
At first order small amount of ads. Don't try to order 1000s of ads for a month, do a test, see your conversion and if it's working for you buy more. Don't risk with a new company you don't know. Always play safe.