KL is also polluted and very dirty. I couldn't recommend it to someone used to clean air and clean streets.
Honestly, KL/Klang Valley is such a gem, cost of living is super low for USD folks. Met many Americans who work on their startup/product here. Your runway extends by 4x thanks to currency exchange.
A huge number of co-working spaces around. Gyms too.
edit: fix abbr
I’m there a few times / year and never had a problem. Maybe if you rely on some coffee shops WiFi it could be a problem but that’s a general problem. Internet is really cheap too if you get a SIM card.