Have had a couple of experiences with them, all positive. The last one concerning a 1969 Superlight. It had occasionally become very difficult to open for no reason I could see. Dropped it off in person and 6 weeks later had it back. They replaced a couple of springs, locking bolt, repaired small split in forend, etc. No charge due to the fact I am the original owner...with the Life Time guarantee card which they issued back in those years. Have been told that only one or two of their people can do the Superposed work.