Allthingspretty, I've taken pretty good care of my bags, and they still look terrible. I have bags and leather goods from other brands, cheaper and more expensive, and they are much better quality and last better.
The metal gets discoloured (and this happens even after only using the item 3-4 times) - this has happened to all of my bags with postman's locks and it has happened to a couple of my purses. I've had one item replaced because of this already, and one item waiting to get looked at and repaired.
The piping wears through (there's a piece of wire with leather around at the edges of the bags) - I have two bags with this issue waiting to get repaired.
The inking (the lacquer on the edges of the leather) on some of the bags gets sticky, ruining my clothes if the inking touches it. It doesn't wash off and will not harden again - and it can't be repaired.
This has happened to one bag.
I have a bag with a metal chain as the strap, and there's a piece of leather woven into the chain. The leather unraveled and started coming off.
The screws on the back of the postman's lock bits come off - this happened to a couple of my bags.
I had one bag replaced as the leather ripped in a place where it shouldn't actually happen. The replacement bag I got has had problems with the screws (mentioned above) and metal getting discoloured (mentioned above).
I've treated all bags with the products recommended. Having followed up with the treatments recommended often. But still, the bags tend to be very sensitive - to water, rubbing against clothes and so on. I accept water damage happens when out in the rain and that colour transfer can happen from blue jeans to a lighter bag. But going for a 10 minute walk in white clothes and a green bag (mini-Alexa worn cross-body) and then noticing that the leather is getting really shiny where it's touching my clothes is a bit disappointing for a bag that isn't exactly cheap.
My mum had some Mulberry bags when I was a kid, some in Congo leather, others in Scotchgrain, and they lasted for 15 years or so. I started buying Mulberry bags because of this - and I'm massively disappointed that the quality has gone downhill since when my mum bought those bags.
Wow, that was long - sorry.
And I'm pretty sure someone in the Mulberry repairs will know who I am now 