Once I got these gloves, I have kept them and used them over and over again with other jobs once I hit 15. Att +3 and HP +6 is hard to beat for a while with only gloves. I might upgrade to Royal Squire's Mufflers or the Federation Tekko.
I got these on Asura for 20K the other day. I'm glad I did, they're worth it so you can keep them all the way to 30. I already have chainmail for my samurai that I bought when i was a war/monk, so I'm all set all the way to 30.