1st Class.
My experience with Reviber was really 1st class. I ordered and received a vibrating foam roller. It proved to be faulty. I phoned and spoke to customers services and it was immediately arranged that I would receive a replacement the very next day. This duly arrived. Perfect. I couldn't ask for better service. I use the foam roller regularly after going to the gym with good results of helping muscle recovery. Thank you Reviber.