Regardless of its economic situation, Greece is a beautiful and safe vacation destination.
Also to add at this point, that Greek people are nowadays as hospitable as they used to be:
" Xenia (Greek: ξενία, xenía) is the Greek word for "foreign" or "strange"/"stranger", or of foreign origin. The concept of hospitality, or generosity and courtesy shown to those who are far from home is "philoxenia"; the word "philos" meaning "friend" and the word "xenia" meaning "stranger", thus "friend of the stranger". It is often translated as "guest-friendship" (or "ritualized friendship") because the rituals of hospitality created and expressed a reciprocal relationship between guest and host."
"Take care of God's needy people and welcome strangers into your home." Romans 12:13