The k100 is a tank, for sure. I like mine. Mostly. It doesn't break, it doesn't complain, it doesn't hit weak. Also, it doesn't stand up on it's own without falling over at the slightest bump, and it doesn't stay put if you lay it down on its side.
I wouldn't tell you not to buy an empire or clone, but I think there are other options with their own pros and cons that you should consider before buying. Unless you can afford to buy a few- then by all means order one immediately. If you don't like it, it will make a solid, dependable back-up mod.