Lots to like for me:
+
Super light at less than a tonne, huge power : extreme performance.
Manuel gearbox of course
Sound awesome.
Race car exterior visuals.
Can self-build
Accepting several not-to-likes
-
Race car interior visuals
Race car ingress/egress
Old design - tubular spaceframe chassis
No ABS
No traction control
No ESP
I'd always seen them as a "cheap" route to massive performance, but when a 2019 RS is offered at the same price as a 2020 720S (with 10k more miles) they appear..... somewhat less attractive.

720S performance obviously lags somewhat behind the RS, but with none of the safety nets - could/would you pedal the Ultima as quickly?

UltimaRS vs Macca720S