The difference in sound quality comes from better pitch stability. I find pitch variation ruins the "I am there" effect. It reminds me I am listening to a reproduction.
Good buy! Make sure you get a spare belt. They wear out a variable intervals. What you see is worsening Wow and Flutter. Get a speed ap that shows wow and flutter on your phone. Check the table when you get it and again every 6 months. When it goes over 0.1% clean the rim of the platter and the pulley with brake cleaning fluid and replace the belt. I always keep a spare handy. DO NOT use powder on the belt. Powder causes the belt to slip more during startup and shutdown which accelerates belt wear. It also makes a mess out of the turntable. IMHO you are better off with a high output cartridge than the lower Hannas. You might ask Christan for a Nagaoka MP500 or a Goldring 1042. These cartridges have high performance styluses and cantilevers that the Hannas below the Red do not have. They are also more dynamic and thus better for rock and jazz. Both cartridges are a fabulous value. The Soundsmith Voice is a fabulous cartridge, better than many 5-6K moving coil cartridges! But, it is also much more expensive than the MP500 and 1042 @ 3K.