I am very happy with my Mac Pro. It arrived sooner than I thought. There was a slight hiccup at first, as I received the wrong power cable, but I sent a message via Back Market and received a reply with a promise to send the right one within the day. The cable arrived the next day. It was not the original cable for that particular model but it worked and I am happy with that. The service was more than satisfactory, from the moment I paid until everything arrived, everything was dealt with really quickly.
I have been using the computer since and it works well and the case is as good as new.