Sooraj has given excellent movies like Maine Pyar Kiya and Hum Aapke Hain Kaun. Don't take this the wrong way but Hum Saath Saath Hain was a boring movie especially the first half which was too slow with no story. It only gets better when one of the family members brain washes Reema Lagoo hence why they all had a fallout which was handled pretty well despite it being clichéd.
Another problem was that it had a big cast hence why Salman Khan was misused. He acted well on screen but he hardly did anything in the first half as he just stood there with a smile on his face and only had a few dialogues. He does manage to make up for it when he confronts Reema Lagoo as the family had a fallout. His character didn't have a lot of importance compared to Alok, Reema & Mohnish.
Like I said Salman acts well but he was misused which wasn't fair. Mohnish Behl was very good and suits his role. Saif Ali Khan excelled and provides some comedy. Tabu was good. Karisma Kapoor is such a rubbish actress who is annoying in this film with a mindless role. Sonali Bendre is very pretty and suits her role where she portrays the character of a shy innocent girl. Alok Nath and Reema Lagoo were excellent. Neelam was wasted in a unnecessary role and she had no reason to be cast in this film.
Sooraj makes you care for some of the characters mainly Alok Nath, Reema Lagoo and Monish Behl hence the significances of the family. It did have good family values but like I said it was slow and boring with a bad screen play.