I have it. Dood it's awesome. Yes it is worth it. I paid a buddy whose a professional detailer $500 for a major paint correction and Opticoat service. Opticoat service was only $100, but I believe now he charges $400 bc Optimum (the company) made it much more expensive.
It's 3x harder than factory clear coat, so you can be more lenient when washing your vehicle, if you do scratch it'll just be on the opticoat not the paint. It's beads and sheets water perfectly. UV protection and it's shedding agents are great, dirt/debris comes right off. You can put a wax on top but apparently it sheds the wax completely within a month. It looks great too, really deep and glossy shine.
I was told it's permanent but it'd be ideal to have it buffed off (only way possible to remove it) and have it re-applied every 2yrs to keep it in tip-top shape. Since it can't be stripped by ANY chemical you can use any car shampoo as strong as you want, making it easier to wash than using a wax-friendly shampoo.
2010 GT Premium - Automatic - Torch Red