Overall, given that this briyani is very unique and well-executed, I think this is as much as you can expect for an experience, and so it was worth the travel for sure. But whether it's worth travelling for+waiting for the 1145pm drop + 30bucks of grab back home+messing up my sleep schedule? That's really subjective, I'm on the fence.
If you stay nearby aljunied, and you happen to catch him on insta, I'd say it's well worth a try. Otherwise I think it's really only worth it if you're a briyani connoisseur
PS this chef has way too much personality lol. His WhatsApp texts are very colourful and not everyone may be comfortable w it. I personally found some parts abit weird