Greater Noida projects: What's the real deal with amenities and maintenance?

The gap between promised amenities and what gets delivered is stressing me out for Greater Noida properties. I'm looking at places like Trivor Urbania. The brochures show amazing clubhouses and green spaces, but are they actually usable daily, or just for show? My parents keep saying maintenance charges are a black hole, and I'm honestly not sure if they're value for money after a year. Do service issues pop up often? Is the clubhouse a ghost facility? I'm a first-time buyer and trying to get a real picture of daily life beyond the EMI. What's the actual experience with green areas and maintenance quality?