As with other reviewers, I was looking for an alternative to the official Google case which is perennially out of stock on the Play Store. This looked like a nice alternative, but sadly I was wrong.
The product, to its credit, fits the phone. In that sense it will protect the edges. However it is made of two parts - a soft rubber interior which houses the phone, and a silver plastic surround, which has some physical buttons on it. Unfortunately, the physical surround flexes away from the rubber, and is not a perfect fit to the interior. It can be removed, but then the moulded section of the rubber is exposed, and looks rubbish.
The glue holding the two sections together is also weak and so the surround was coming away from the rubber as soon as I opened it.
I think the official Google case is a single rubber part, and, although that might have been what was originally sold on this link, is no longer comparable. I'm not sure if the supplier or part has changed, or if other reviewers were simply luckier than me with the quality of the product they received.
Overall I would not recommend this product. Either wait for the Play Store to stock the official case or try your luck elsewhere.