There are many direct mail or fulfillment companies out there. Choosing one affects the quality of the entire campaign. Many companies offer pre-packaged campaigns based on specific industries. While these quick and easy to use, but each has been used many, many times by your competitors. Other providers simply take your order and produce and mail the materials for you.
If you have a complete campaign created and ready to go, these may be the providers for you to use. If, however, you need more help with the campaign, or need a custom campaign designed, you should work with a provider that you can talk with, preferably in person.
Working with a provider live, by phone or in person, your personality and business goals can be incorporated. You have the ability to talk through, and possibly sketch, some of the conceptual ideas to get a better feel for the materials. A live conversation allows you to discuss the options around the prospect list when defining your target market. Many times, a professional knows other options or criteria that may narrow the list to exactly the prospects you want.
Selecting a provider should be given careful consideration. The decision is based on your ability and confidence to create a successful campaign. If you're not sure, meet with someone. If you have a tested and proven campaign, go with the automated providers who can crank out your materials and get them in the mail right away.