Before I bought into any pre-designed templates, I would ask a lot of people what kind of return they REALLY are getting, not what they think, not what others out there are saying but what kind of results they are REALLY getting to see if a marketing piece is really working.
Just because something is cute, clever, looks nice or whatever does not mean it will get the phone ringing, good marketing messages do this.
I have asked people in the past about those marketing pieces to see what kind of results people are getting, particularly in the southern states as it is a different climate than on either coast or even up north to see what kind of results people are getting and I got a lot of runaround, guessing what they will get and what they have heard others getting but nothing concrete.
It would be nice to buy a marketing piece that is proven but those are hard if not impossible to find that bring good or even mediocre results.