Sonic Frontiers SFL-2 SE version

Has anybody sent their Sonic Frontiers SFL-2 in to the parts connection to be upgraded to the SE version? It costs $695.00 for the upgrade. Are you happy with the upgrade? I thought I might do it as the SFL-2 is getting to be an old design.
I would still be interested in what someone thought of their SFL-2 upgrade but I purchased a Sonic Frontiers Line 3 off Audiogon. I am going to have Chris at the Parts connexion upgrade the Line 3 instead.

So how do you like the Line 3 SE+ upgrade done by Partsconnexion?

Worth it? What are the differences you hear?