I guess one of the trade- offs is to be away from your own family. An OFW cannot personally look for the welfare of their children. In some cases, the children could not even fully understand why do their parents have to be away from them sometime.
Also, economically, these OFWs would have to take the risks when they go abroad. They have to wish that the peso would get weaker so that their salaries will get higher. Ironically, they are happy if the peso weakens because the remittances their families receive are higher. I guess this would be the underlying reason why OFWs are not happy that our peso is getting stronger than ever even if a stronger peso is good for the country.