I used back in April and my tint had a lot of defects, I have a couple of small bubbles (dirt inside), and I can see some light scratch from inside on my windshield (probably due to a low lubrication during the water removal), plus my stoplight is dirty since that.
Those are a lot of imperfections, I would inform them but let them know there's no reason to come in for it, then later one day when a bubble or larger issue appears ask to schedule a replacement under the warranty.
I had the PPF done with them and although I could go looking for issues on the frunk and grill area, I let it go as it isn't an issue, if it starts to peel then I will bring it up to them maybe.