You're making me want to get a SP6 myself with that review! My SB2 15" is still going strong since 2017.
welllllll.....my signature keyboard is on it's way out and only works in the tilted position so I ordered another one, but in all fairness it HAS been like 6 years so I kinda get if the keyboard starts acting up by now. lol.
I mean you could get a 6, but you could also get an 8 which I think would be a better investment IMO.
If I do get an 8/9 tho, I am going to miss the whole fanless design. Not sure how I am going to like having a fan go off while using my tablet.....but thunderbolt 4 is a VERY NICE feature to have...decisions decisions...