Quote: "Seppuku's pretty good with that program. I've seen him make some nice stuff from it."
Why thank you
I do use it as a primary modelling tool.
Hexagon is what you call a speed modeller if you will, it focuses itself on modelling and has tools to make good modelling done quick (good when you're experienced in modelling, the skill isn't automatic) It offers a range of good tools for modelling, my new character modelling tutorial I am working on is being done in Hexagon 2.
But it only offers modelling UVMapping and texturing, no animation, composistion or real rendering (it has an ambient occulsion renderer that isn't very good, as it is very limited) As for .x export, nope, I haven't come accross it. If you're willing to buy it, find a program you are will to work with, I think Milkshape if you just want to use it for games, but if you want to do render work, there are other apps you can use alongside (I use Cinema 4D CE 6 with my Hexagon)
As for UV Mapping, the tools are pretty good for that as The Crazy mentioned, but I still use lithunwrap as I prefer its auto UV as I'm a crap UV Mapper.
Although I did UVMap a face in Hexagon, and it found to work quite well. The texturer, well I get much better results in photoshop.
Hexagon also comes with its own set of bugs, which don't get in my way, you may get a crash, a save error, or other errors, once you know what it don't like you doing you can easily avoid them, I think one is using symmetry with the displacement mapper. I myself have come a across very little problem's, but I've head people coming acrosso others. It is a pretty cool and capable tool, if you're willing to buy that type 3D modelling program, I'd take a look at Silo 2 and Zbrush/Zbrush 2 as well, if you are willing to spend more, personally I would be Zbrush, but the catch with that Zbrush works more like a paint program than a 3D program, so if you're new to it, you may find yourself getting confused outside of it.
However, I am happy that I did buy Hexagon and would recommend it, but supposedly Silo 2 will be better and cheaper (but no paint tools) so I'd look into it to see what you think.