I'm certainly no expert on acoustic guitars and may experience is limited. I only own one other acoustic guitar, and it's an Ashland. (My very first guitar, made by the same company that made baseball gloves in the early 90s). I do however have experience playing other instruments. The lines I have played often and are most familiar with are Taylors (700 series and under) dreadnoughts and a few lower/mid end Martins. I've also had extremely limited but quite enjoyable experience with higher end acoustic guitars. Mostly Froggy Bottom and.. well that's about it actually. I've run over a few models and I had a friend who owned one that I played a lot with until he bought something even more expensive. I tell ya, if it weren't for his wife that guy would be homeless on the streets with nothing but his guitar collection.
Again, it all depends on what sound you're going for since acoustic vary so much. The Carvin is definately worth looking into, but since you've already had experience with Taylors, Martins, and the like I would go for something a little more high-end. I sort of view them (in a good way) as a poor man's Taylor. They're close to Taylor sound (maybe like a 350c?) but they are missing a slight bit of bottom end that I prefer and have a nice bright high-end. So if you're looking for a cheap Taylor-like guitar you can knock around then it'd be a good choice. Otherwise, considering you're previous acoustic experience, I'd go for something else. They're are definately the best guitars in that price range though with excellent quality control for being built overseas.