This phone is great at doing what phones should do best -- calling and receiving calls.  I purchased a Motorola F3 for a great price just before a trip to Nicaragua in 2009.  I purchased a SIM card at the airport in Managua, loaded minutes onto the phone, and didn't have any problems.  It was much cheaper than adding international service through my carrier in the US.  The battery life on this phone is excellent.  I'm thinking about upgrading phones to one that has better texting capabilities and one that isn't quite so old.  Overall, this is a great, inexpensive phone.  It worked great for me in high humidity and it's very slim, so it's great if you plan to keep it in your pocket while you travel.