Karaoke version has a very user friendly purchase and download process. They do not require a minimum purchase, nor do they require their songs to be in a specific format or on CD. Their sound quality rivals that of other respected karaoke brands. If a song has incorrect lyrics, they have a process to suggest the corrections. When corrections are made, the updated version of the song can be downloaded at no additional charge. I have only had to reach out to customer service once and got a prompt response. The only slightly negative aspect I see is that on some custom tracks they combine multiple "background" singers into one track that cannot be separated if wanting only some of the background. Other than that I am highly satisfied!