Honestly Jhalak has never really benefitted anybody..
yeah you do get an exposure and you get to know where you stand in the eyes of the audience but nothing more than that...
Kjo doesn't give everybody a chance.
I remember how he had given Siddharth Shukla a chance because of Jhalak but he still didn't get movies after that (humpty sharma ki dulhaniya)
Even the winners have never been benefitted from the title they have won
With each new season coming in every year,the previous contestants are forgotten
So my opinion is that a person should do jhalak once they are content of the work they've done!
Jhalak's platform is a great exposure,no doubt
but for newcomers like Sid who's done 1 television show and about 3 movies,I doubt it
Though I'll be super happy if he wins cause he's our Sid but yeah no benefitsš¤