It's a pretty tank, but I agree with Nick. 13" would be very narrow. It doesn't give you hardly any depth to work with, which would make the overall appearance and your aquascaping interesting, to say the least. Finally, I really urge you to steer clear of an acrylic tank. They scratch REALLLLLLLLLLLY easily, and I can't tell you how many "HELP, I SCRATCHED MY ACRYLIC TANK!!!!!" threads I've read on Reef Central while browsing the equipment forums every day. They require special scrapers, and even then it's easy to scratch one by accident. I like the expression: "If you even look at an acrylic tank funny, it'll get a scratch."
Finally, the lack of it being reef-ready means you either go without a sump and have all the unsightly equipment inside the display tank, or you go with an external overflow that requires space between the tank and wall and could possibly lead to a flood all over your floor if it were to fail in any way.
I'm really sorry I couldn't say anything nice about that tank other than that it looks nice in the picture, but I think you'd be happier with a tank made out of glass that gives you more depth to work with. Just my $.02 to chime in with.
-Joe