I have been super happy with the ceramic coating and less so with PPF. - TLDR
My experiences are different from most of the responders. I do NOT enjoy car detailing. I am not experienced at it and would not know if I am doing more harm than good. Historically my enthusiasm for cleaning a car runs out by the time I have washed it and so lovingly hand waxing previous cars has been a rare event and limited to trying to improve the finish with super resin polish.
As my MY was the first new car I was buying in some time (I tend to hang on to cars) and I planned to keep it for a long time I decided to try and keep it looking pristine for as long as possible. I decided to get PPF on the bumper, bonnet, headlights and door mirrors and Ceramic coatings on the whole car. For the paintwork I went with Gtechniq Crystal Serum Ultra because I was having it applied by a professional detailer anyway and the potential extra life of the coating fits with my plan to keep the car.
The car is only about 14 months old and done 13,000 miles but the paintwork is immaculate, not a swirl in sight. But the added benefit to me is that the car is so easy (and a pleasure) to wash. I have invested in a foam lance for the pressure washer, 2 buckets with grit guards, wash mitts and new microfiber cloths and towels. I do a pre-wash with the foam lance, rinse, main wash with the foam lance, stroke the mitts all over rinsing the mitts regularly, rinse and then stroke with the towels to dry. I use the word stroke because it is the lightest of touches. The time it takes is probably 15 minutes setting up and clearing away, 10 minutes washing and then 15 minutes drying all the nooks and crannies (by far the worst bit of the job).
Afterwards the paint looks glorious and feels like silk.
I know that the PPF is there for a different reason but the ceramic coating on the PPF (Gtechniq HALO) does not work or last so well and it does not have that silky smooth feel. The PPF is not invisible. There are little notches cut out on the corners to avoid overlapping. Cut outs around the badge and the USS’s and these edges are visible close up, although not as noticeable as the edge of the factory installed PPF on the rear doors for some reason. I do not have the same joy when washing those areas as the ceramic coated paintwork as the mitts and towels drag a bit on the surface and it does not have quite the same deep shine. But the question is has it saved me from lots of stone chips? Probably but how do you know what would have been.
I had both the PPF and ceramic coatings applied within a few days of receiving the car and based on my limited experience would definitely have a ceramic coating applied on any new car I get. PPF, the jury is out. I would say that a decision on ceramic coating is from the heart, I love the way it has kept the car looking and feeling. The PPF is more a decision of the head, I know it is a good thing but I don’t love it!
I should also mention the Gtechniq ClearVision Smart Glass coating applied to the cars glass. It makes the glass very easy to wash and water streams off the windscreen making visibility very good. Two things I have noticed though is when a wiper passes over there can be a slight milky appearance for a second before it clears, not sure if it is caused by this product and secondly once dried if wiped with a cloth with any lint the lint gets left on the glass. Other people’s experience would be useful.
I am not claiming that you cannot do better with more work or with different products, but I am very pleased with my MY ceramic coating, it has made it very easy to keep it looking fantastic.