Originally had an earlier version of 60w spark that had overheated USB C tip. After a bit of a stalemate on getting any sort of replacement (John from) Volta reached out and offered up a replacement set free of charge. The communication and updates were first rate and within a week or so a new updated version with improved case and tips arrived and problems solved. Hence the updated and revised score. I appreciate the company finalizing and correcting the issue with the replacement.