Kids have moved out, downsizing in Noida now

Since resale of my bada ghar is almost done, I'm looking at smaller flats. Gaurs Aero Suites vs Unitech UGCC Burgundy... Unitech is ready to move, right? Maintenance charges kitna hoga? And Aero Suites mein possession kab tak milega? Hospital nazdeek hona chahiye. Confused!