There's many that skip the break in and go all in from the get go as they don't believe in it. I've read it plenty of times in the early years of this car. Honestly, I believe it's a total steal, based on your opinion of course. I would never buy something like that as my intention was to go new and untouched. But in your case, if you don't care, that's an incredible deal and the car should have no real engine problems as it is practically unheard of in stock form, minus the recall models.
I also think it's hilarious that out of all the cars out there, someone chose to hop in a BRZ and bust out of the dealership.