Open letter marketing- whats your experience?

[Brock Thomas]

I am thinking about signing up with Open Letter Marketing company to do mailers for me.  They have given me access to listsource to narrow down my mailing area based on my criteria.  I have never done a direct marketing campaign before.  I have purchased properties mainly as foreclosures in the past but that market is pretty slim right now.  For those who have used this model can you please give me some insight into some success and failures you have had with this.  I do not buy lower end properties so I am looking for opportunities in mainly B class neighborhoods.