I had an older Samsonite carry-on (4 wheel) that had a wheel come off. The part was no longer available from Samsonite so the case couldn't be fixed. Mark's worked with Samsonite to ensure my new bag arrived before I had to fly out again - less than 2 weeks.
I expected this to be a hassle, but I was really impressed with Mark's and with Samsonite. Mark's luggage was great - staff was friendly, professional, well-informed and kept me updated throughout the process. It was an amazing experience for such an unpleasant situation. I wish all service providers were like Mark's!