First-time buyer in Gurugram, totally confused about next step

Been looking for a 2BHK in Gurugram for ages now, it's getting really tough. I'm eyeing Signature Global Orchard Avenue 2 near Dwarka Expressway, budget around ₹1.2 Cr. As a first-time buyer, I'm super nervous about choosing the right builder, honestly. Has anyone here bought from Signature Global? My main concerns are their on-time delivery track record and construction quality. Kya time pe possession milta hai ya delays common hain? Post-possession, did you face issues like seepage or bad finishing? Aur customer support kaisa hai? Booking ke baad they actually help ya bas ignore karte hain? Any advice for an end-user like me?