Law requires that if you are sending something for promotional services, you're required that the customer opts in themselves. So no sending a text message without consent.
We're probably going to move away from customer link soon. Their postcards were useless, and their review system stays..on their review system. Its nice to have all the reviews, but they aren't in the most effective place - like they would be on bing and google (I'm looking at going with overdrive strategies maybe, for reputation stuff. they were recommended to me by a friend). But i've moved our email marketing off, over to just mail chimp, I think the demographic photos are a bit cheesy, and I doubt their effectiveness. Looks cool from shop owners perspective, but that may be the extent. Looking into replacing all they do to save $300.