Could not agree more. I go to a Toyota dealer that's about 15 miles away from my house because the parts guys there are out of this world friendly, knowledgable and helpful. I've a Toyota dealer 2 miles from my house and they're utterly awful. The awful dealership will have you sit down on a seat, go in to an office away from you looking for the part, then come back saying they can't find it. The helpful dealership have a counter and they'll either turn the screen to you so you can make sure it's the right part (or help them out when you don't know the name of it) or go behind the counter to do so.
Also missed this. As I said I've got a 107 from 2010, and I have another Peugeot (a 3008) from the same year. The build quality between the two is night and day difference, the 107 - although a bit utalitarian compared to the Aygo - is really not bad, even after 8 years. Sure, I'm experiencing water ingress now but that's by the by. Compare it to the same age Peugeot and the bigger Peugeot is just shoddy. Falling to bits, not reliable, expensive to fix etc.
I would guess though that while the Aygo might not be on a par with other Toyota's - as PSA might have brought the quality down a bit - they're still far better than whatever PSA or other manufacturers are bringing out. Maybe with the exception of Kia and Hyundai.