Ok so I had an awful experience with Campaigner (lets chalk it up to a few bad employees) but since I posted this, someone from their customer relations department contacted me after reading my post and made it her "mission in life" to change my mind about campaigner and fix my issues that were still pending.
She was very professional about fixing the issues and apologizing about the previous employees I had dealt with. She wasted no time in fixing the pending issues and made me re-think continuing to use Campaigner.
As a side note, what we can ALL learn from this experience is this -- make it easy for your customers to contact you. This was a major cause of frustration because although I had issues, I either couldn't get a hold of anyone, or the people I did reach were far less than helpful. In this day and age of competitiveness in business, we all need to assure that customers can reach us AND we are giving the best possible service to make sure our customers keep coming back.
The rep that contacted me re-instilled my faith in Campaigner -- so I will continue to use them for our email marketing, especially when I get a rep like the one who contacted me, who clearly cared whether I used their service or not.
Email Marketing is an awesome way to keep you in your customer's faces - remind them to spend money with you!!! I have already seen, that after only one campaign, it brought some of my customers back to spend more!!