I've been using Nillkin cases and screen protectors and they are always great quality and very durable. I recently bought the Mi Mix 3 and this frosted case, it fits the phone very well and adds that extra bit of much needed grip at the back of the phone since it can be slippery. The case adds very little bulk to the phone. The only single negative aspect of this case is that once it is on, trying to slide the phone to activate the camera becomes a bit more difficult due to the friction of the case hugging the phone so you will need to hands to push the slider down. All in all a high quality product at a great price.