First investment property: worried about hidden costs

Loan finally approved for my first investment property, but ab samajh nahi aa raha construction quality ka kya scene hai. Projects like DLF Pink Town House sunte hain, but phir log bolte hain within a year cracks aate hain, seepage issues ho jaate hain. As an investor, I'm worried about future maintenance costs and tenant complaints. Kya yeh small snags later affect karte hain resale value? Yaar, log bolte hain initial quality se hi pata chalta hai. What to look for during possession checks? Koi actual experiences batao please.