I think no traveler cannot survive without internet and how can one access internet services while in Istanbul. kindly advice cause the last time i was there i used skyroam services and it was pathetic, a friend of mine has recommended rent n connect which is a pocket WiFi too. let me know your take on this
Looking at the website, I think rent n connect is expensive - it looked like a weeks rental of the device worked out at around €44 + shipping of €6, so just under €50.
In comparison a standard Turkcell tourist visitor SIM is 149 TLR (aprox €23) for 20GB of data that lasts 30 days.