I’ve played a studio, standard and a deluxe, and I think I’ve also briefly tried out a sustainable as well. To my ears the standard was a noticeable step up in tone from the studio, fuller richer sweeter etc. The deluxe I didn’t think sounded any “better” than a standard and visually it didn’t appeal. So I went with the standard. This was before the original series was released, which I think is a standard with a few cosmetic changes