In my spare time, as I was working my way through the lower 50s, I would gate over to Natimbi and kite stuff around the hill under the Mastruqs whenever I was LFG, or whenever I just didn't have anything else in mind to do.
While the exp wasn't mindblowingly wonderful, it was still noticable, and after it was all said and done, neither this nor the Strand of Sea Pearls were exceptionally hard to get.
For a quick boredom killer, Natimbi has a couple of decent little rewards, not to mention the chance of getting one of those really nice FT or +ATK items.
On a side note, I found that if you announce once or twice what you're looking for (be it the meats or the stonemite parts), you'll occasionally get somebody who isn't questing them to let you loot the quest parts for free (though it is polite to give a donation on that, if you've got the change on you).