Matt, why not have a path rather than pop up it does not load on my browser as they are always blocked.
Also that cloud may get you in trouble with google if it is indexed, the text on parts is unreadable.
I think the idea is a very good one, and your customers are a little different than a random fining your site and getting a pop up.
These are used with a very good results, people are used to pop ups nowadays it does not P**s everyone off, my guess is that guy is talking about his own experience of them and not the masses.
Good idea just needs tweaking, and your text size on parts of your site may want to be looked at as looks a little messy tbh, having a link with cons on it IMO is giving out a bad impression, you and I know what it is, but a customer probs will not, just a thought