Remote working in Icarai de Amontada (Icaraizinho)

Hi, if you ever remote worked in Icarai de Amontada, Brazil, I would like to know if there you had a 3G ou 4G phone network at all, decent or not and what phone provider you recommend for data usage?

Also about the Wifi connections you used in pousadas, what is your experience about connections speeds and reliability?

Thank you !