Yes, he’s apparently very good in it.
Efron is pretty pitch perfect here, delivering the best performance of his career thus far. He imbues Bundy with an undeniable charm and likability, but never tipping the scales into glorifying the man. What’s brilliant about Efron’s performance is how he subtly lets the audience in on the façade that Bundy s putting up. You can see he’s charming, sure, but you can also tell that hiding right underneath that smirk is a wealth of anxiety and anger. Bundy’s outlandish attempts to keep Elizabeth on his side and later to win his trial while defending himself come off as desperate attempts to wiggle free, not endearing quirks as some may have feared.
One of Bundy’s near-victims has also said he has got him down perfectly.
Others are not liking the fact that Efron makes him likeable, however he was, in real life, very much likable almost of the time with very hidden moments of darkness. His first judge told him had he not “Gone the wrong way” he’d be proud to have him in his courtroom.