Quality is very good. About what you would expect from one of the top OEM drivers.
The Titleiest 907 D1 is a 460CC head driver. The club face is quite larger, especially heel to toe wise. Face height is about average, or slightly less. Nice and quiet at impact, which a lot of golfers will like.
The D1 have a odd shape with the back of the head coming to a point, rather than being round. Kind of reminds my of Home Plate in baseball. Not fond of bore-thru head designs, as it makes pulling the shaft much harder and also more work to install the new shaft.
If you like a driver without the loud noise of some of the new models, this would be a good place to look for your next driver. With the right shaft, I see no reason for the 907 D1 not to make you happy. Nothing not to like once you get used to the shape of the head.