Quintana Roo

I've got a PR six - non disc... so maybe worthless info for you, but...

Love the frame. The bike box has some issues with the plastics attachment, but fixed it.
They had issues with fork rub on frame, but the fixed that.

I'm not sold on the disc brakes yet. I'm waiting for them to play out for a few years so they don't turn into the beta max of the bike world.
Cool in theory, but wheels are an issue as they need to be disc specific = $$$$$$$ and if something goes wrong, could be a pretty penny at the bike shop.

But, if money is no object, I'd go PR Six Disc all day.