FWIW, I had a stock Jolida back in 2004, then went to a RA Opus 21 CDP after A/B comparison in my system. The Opus won out after a week of trials. Then in 2006, changes made to my system brought the Jolida back in and I really liked its sound (again). I was really surprised how good it sounded (again). About a year ago, I wanted to try out a NOS CDP, I bought the Consonance CD120 Linear (which I own now) and trialed it against the Jolida and I liked the Linear better.
There may come a day when I try the Jolida again, who knows? It's so difficult to tell you "what's better". You've received good advice here on what tubes to roll. I'd say try some of those (if you haven't already). The Jolida is a very good machine (at its price point). Many have moved on from it, some have stayed with it and others have returned to it. I may just pick up another one used and see how it sounds after a year with my CD120 Linear. Nothing like validation, right? Do us a favor and let us know what you decide on, it helps close the loop. Good luck.