BPTP's delivery timelines are a myth, right?

Dwarka Expressway Sectors — kids ke school ke liye ek acha 3BHK dekh raha hu. BPTP Astaire Garden Plots kaafi time se shortlist mein hai. Par unki on-time delivery ka track record kaisa hai? Sunne mein aaya hai ki kaafi delays hue hai. Kya BPTP ne actually time pe hand over kiya hai? Aur booking ke baad customer support toh milta hai na? Ya bas sales tak hi sab theek rehta hai. Wife ko construction quality aur society maintenance ka bahut darr hai. Koi real experience batao please.