Silicone Treated Clay Pots

[zomorph]

I really like the look of the Mandel Pot sold by ikea ( I tried to put a link in this post but the site kept blocking it) The description says that it is silicone treated and they are water proof. The reason that I am looking at clay pots is because I prefer them over plastic ones because they breathe more, but I really hate the look of the traditional terrcotta cone shaped pots.

Any idea if this pot is going to act like a plastic pot and not "breathe" like a regular clay pot?