I've been living throughout Europe, and this is the worst dry cleaner I've ever left my laundry at, but I know that I speak for my colleagues as well. Instead of ironing your shirts this shop "presses" them in a mangle with the result that buttons pulverise and frequently need to be changed.
I have also had a shirt returned with a big ripped hole in the upper arm.
A colleague of mine had her skirt returned with big, visible holes from where they had nailed it up.
Last week when once again I got my shirts returned with broken buttons and complained about it I was insulted and yelled at and told that if the service wasn't satisfactory I could take my clothes somewhere else.
To be honest, the only reason I kept leaving my clothes there was due to the shops convenient location just below the office, but I have since sourced a different dry cleaner that doesn't ruin the clothes and that has a good customer service (which one might consider should be the least to ask from any dry cleaner).