Just got possession for my Saini Bhawan unit, and I'm fuming.

Okay, I'll be honest — I completely underestimated the headache with Saini Bhawan's delivery timeline. My 3BHK in Zirakpur was supposed to be ready 1.5 years ago. Abhi tak OC (Occupancy Certificate) ka wait kar rahe hain, which is seriously impacting my rental yield calculations. I've seen this pattern before, but this delay is something else. Builder ka response bhi bahut vague hai. I'm also really concerned about their RERA compliance. Maine suna hai kuch consumer court complaints chal rahi hain inke against for similar delays and hidden charges. Is it true? Kya koi aur bhi hai jo Saini Bhawan project mein delay face kar raha hai? What did you guys do? Should I push for compensation through RERA or wait it out? My calculated ROI is already taking a hit.