I had a small issue where you could hear hissing when the mic was not active (between songs) and the mic wasn't picking up very loud. Otherwise it's a fun machine! I left feedback about minor issues and they responded very quickly and offered to send me a new one without sending the old one back. They met my needs very quickly and made sure I was happy with their service and product. I think they have great customer service. I have not asked for a replacement or complained that this is a terrible product but they went above and beyond to make me happy as their customer and fixed my mic issues. I like it! I absolutely recommend buying from them anytime, they will make sure you are satisfied and taken care of. I would definitely buy from them again! The new microphone works fantastic by the way, no problems so far. Thank you for sending a new one without hesitation, you are a great seller and you care about your customers.