I have a Stack-On locking cabinet (nowhere near as fancy as the safe you linked to), and based on my experience with it and seeing some of their safes, I think they're probably a good middle-of-the-road product. The fit and finish won't be the equal of some more expensive safes, and it's probably not as secure (I didn't see any official ratings regarding its resistance to forced entry or surreptitious entry.)
But for a grand, it's a good place to store your guns, and the lock mechanism will probably be reliable. Unless you're really big into aesthetics, or you have some particular reason to believe you're going to be hit by sophisticated thieves with lots of time, I can't think of any reason not to get it.