I only want one ornamentation than leaving it alone. Its not really fun. Gems on the other hand is at least fun.
Overseer offers pretty great rewards for quite literally 5 minutes of mouse input that can be done in any zone, you're insane if you aren't using it. It's a "gimme" with no downsides, you were gonna be idle anyway so the timers are of no consequence.
Currently I still try to use Overseer every play session but there isn't much from the current system I could use on my characters. I am still holding out hope that they will add DoN, OoW, GoD, and PoP tradeskills components to the Research, Crafting, and Harvesting mission types. I'm disappointed they didn't want to add the Fragments to Overseer vendor but at least add some more things to the overseer vendor beyond just ornaments and 2-3 other items. Some more older expansion group currencies would be a good start. I also think an Uncommon, Rare and Elite agent reclaimer on the vendor would be another decent addition.
