I recently lost the spreader bar for the Dakine T3 i'd been using for the past couple of years, and couldn't find a replacement in time for when i needed it.
So went out and bought a new harness from Pro-limit
Much prefer it to the Dakine now, more support, doesn't dig in, ride up, or come loose, and the spreader bar doesn't move around. Feels more connected to the rig as a result.
Also I like the quick release, although haven't been trapped under my sail for a while to need it.
Best thing I found is to try a few different ones in the shop, as some just felt wrong. I guess everyone is a different shape.
You really need to try a few out. I find that some brands fit my body shape while others totally dont work. So it's not just the quality but the shape that counts!