What nobody tells you about builder delivery track records

Not proud of this but I almost got duped by a pre-launch scheme. I work in real estate but buying for myself is different, yaar. Dekh raha hoon V Square Group Housing mein. Builder ka track record on deliveries, especially for past projects, kaisa hai? Logon ko kya lagta hai, timely possession milegi? Also, resale market mein iski liquidity kaisi hai? Matlab, 5-7 saal baad easily bech paunga kya? Aur capital appreciation ka kya scene hai, kitna expect kar sakte hain?