2 months in my new 2BHK: Noida Extension reality check

₹78 lakh for my 2BHK, and possession was just last March. Finally moved into Evermark Provica Dream Valley 2 in Noida Extension two months back. Honestly, site visit pe sab kuch 'top-notch' laga tha, especially the clubhouse amenities they showed in brochures. Ab rehne ke baad, I'm having second thoughts. Construction quality kaafi average lag rahi hai. Already deewaron mein hairline cracks dikh rahe hain, bathroom fittings loose ho gaye hain. Kuch areas mein toh halki seepage bhi feel ho rahi hai. Builders bas possession deke haath jhaad lete hain, service requests pe koi response hi nahi. Also, that grand clubhouse? Mostly khaali rehta hai, swimming pool bhi properly maintained nahi. Meri expectations kuch aur thi yaar. Is this common in Noida Extension projects, ya I just got unlucky? Any advice on how to get these issues fixed post-possession? Or should I just live with it?