What buyers only discover about amenities post-possession

Visited Sk Shri Shyam Apartment in New Delhi last Saturday. Brochures always look great, but real-world delivery? I'm in a 2BHK now, thinking of upgrading to a 3BHK there. That premium for 'luxury amenities' is big, not sure if it's worth it. They show 'state-of-the-art clubhouse' and 'lush green landscapes'. But kitna use hota hai ye sab? Maintenance charges bhi toh lagti hain. Is the service quality good for the charges, ya sirf bill badhega? Promised amenities often don't even work. Jin logon ne yahan possession liya hai, please share experiences. Promised vs delivered? Is the price jump justified, ya sirf EMI badhegi? Confused.