Simply put - woeful and should be nowhere near boks 10, not in the best 3 10s, not even the best Jantes .... A fair highlights would be him constantly giving away possession and territory ...
I agree he never really performed in the Springboks jersey but that due to the way the Springboks play. No attaching flyhalf has ever succeeded for the Boks. A good example is Libbok. He is brilliant for the Stormers yet for the Springboks they expect him to kick up and unders whole day that's not his strength the same with Elton. He really messed up his career with all the scandals the last few years. But give credit where credit is due. He was voted super rugby player of the decade not South African player but overall player of the decade and not by South African it was voted for by all the sansar nations based on performances from 2010 to 2019. Let's not forget he led the Lions to 3 back to back finals.