Air conditioning unit isn't powerful enough to have any effect. The space isn't laptop friendly as described.
Greg messaged me the day of my arrival explaining they have building works going on and if the noise was disturbing to let him know - which I thought was nice of him. Each morning the noise started right on the same foundations as the property right next to the annex at 7.20, and continued throughout much of the day. When I asked him to delay the early start he told me no, though. He was friendly enough about it but didn't change how unbearable the conditions were.
Ultimately, the apartment unlivable. I booked a flight home early costing me an additional $300+. Greg agreed to refund HALF of the two days I wasn't going to be there, and made some comment about if I were to ever return he can gve me free days in another property - which doesn't help me, and he still has my money from the time I endured there. Don't get me wrong, he seemed like a pleasant guy, and I'm sure if he sorts out these problems in future he will be a good host.
This booking should never have been accepted on the grounds of the noise. The air conidtioning is not adaquate and needs upgrading before anyone else stays here. It shouldn't be advertised as laptop friendly and the neighbourhood is not safe for tourists. (There is an anti airbnb campaign operating in the area.)