Well, it all depends what you plan to do with it.
If it would make a nice name for a website you are designing, then by all means use it.
If you're looking to flip it for a good profit, think twice. A lot of strong one-word keywords are available in the .name extension. Why is that? Because domainers haven't had much success selling domains with that extension.
(Any TLD with strong keywords unregistered is a risky investment; that applies, for example, to .ws and .cc, extensions which enjoyed some popularity among domainers not that long ago.)
But if you're not spending a substantial amount of money, and your expectations are reasonable, don't be afraid to put a toe into the water.