If that is the case, isn't 20 days' work better as its cheaper?

At the end of the day, all depends on how much you're willing to pay

You cheapskate, it's the same whether its Malaysians, Indonesian or China

If you're willing to pay, then they can give the best

You said even with 2 months, quality still shit

So, might as well go for 20 days since both also need to fork money to repair

Shorter days mean you save more for repairs later