I'm always pretty nervous about synthetic leather. I don't doubt that it's possible to do it really well, I just haven't encountered such an instance. I remember shopping Toyotas and they had a leather substitute that was a hefty upgrade (more expensive than other makes' leather), and I couldn't stand it! The salesmen said they get that a lot, and actually had an arrangement with a local business who routinely replaced it with real leather.
So long story short, your review is pretty reassuring, but do you think my local Tesla would mind if I stopped in for no other reason than to fondle their white synthetic seats?