Education is wide-spread. Although Spanish is the official language, English is somewhat commonly understood throughout the country. English newspapers, magazines and books are easily found and US satellite-TV is the norm. Many US products are marketed in Panama. You can use regular plugs without concern.
Telephones are plentiful and allow direct dial international long distance.
Modems and Fax's are usable. There are internet servers available for email access. Bank wire transfers and American Express transfers as well as VISA, MasterCard, Diners, Carte Blanche are widely accepted in commercial districts. Transportation is safe and abundant. Aircraft follow FAA guidelines.