Nice ride. Not sure how big your crew is, but with a little add'l weight, you will have a great surf wake. You can really load-up since you have the 450 and new gearing (1.76). The factory settings work well.
Interior and sound system rock. On the 2020s, they put the batteries in the center compartment floor. On the 18-19s many used that area for a cooler. Not a big deal, but some SL owners were bummed about that battery move. But you should have an easier battery switch. On the 18-19s that switch was under a seat. I was on 2020 SA that had the new JL subs (two) - really loud and clear. Sounded great. I do not read about many complaints about the SL.
Make sure to join the Supra and Moomba Facebook Page (if you are on social media).
And the Moomba Forum. There are many Supra owners over there.
https://forum.moomba.com/