Taxi in Istanbul & Bitaksi app

I will stay in Hilton Bakirkoy in August, which is not close to the city center. I saw a lot of horrible / scam stories about taxi: https://liveandletsfly.com/istanbul-taxis/ How bad is the taxi in Istanbul? What is your tip? How is the Bitaksi app? Thank you

I Don’t Understand How Taxis Work In Istanbul... - Live and Let’s Fly

Live and Let's Fly