At the moment, I don't use her because she charges Crowns and I don't see the need to make one piece of gear look like another. Now, if our opponents could be fooled by high level gear looking like low level gear, than it might be worth it.
She's the greatest addition to the game up to and possibly including whenever they put a flag changer (or, maybe someday, an appearance changer so we can change our hairstyles, etc.)
What my character looks like is of paramount importance to me, so Stitching is exactly what I needed!
Every time I log in, I mostly have to look at my own character so I want her to look how I want, not however her current gear looks, so I think stitching is a great addition to the game!