Yes when Sajid and Farhad worked together, they did a good job. I enjoyed Ready, that's one of my favourite Salman films since 2010. Singham, Simmba, HF2, a few portions of the Golmaal films are also good.
HF3 was a very bland film, and post their split, Farhad has stooped to a new low.
Somehow his dialogues aren't in his usual sing song poetic manner when he teams up with Rohit Shetty, so I am not too worried about Sooryavanshi. The Hindu-Muslim angle annoyed me the most in Laxmii and the CGI portions, otherwise the film wasn't as bad as HF4 in my opinion. Coolie No 1 was an embarrassment of epic proportions!
I haven't seen Gaddalakonda Ganesh so can't make the comparison, but Jigarthanda seems to be quite different from BP. One they have changed the gender of Siddharth's character to Kriti Sanon. And with Farhad putting his inputs, don't know what is going to happen.
He is NGE's poster boy for now and for Salman and Nadiadwala to have faith him in for HF4, BP and KEKD, the least he can do is to re pay the faith and make 2 decent films. Not much to ask for lol.
Akki's and Salman's star power will ensure a success for each film anyhow.