Magen's Bay is nice (and if you DO go there, stop at the dairy and pick up an 'adult beverage' milkshake...my favorite being the khaluha and mocha shake)
...but I lived there for a year, and it is the scummiest, dirtiest place I have ever lived. The resorts are nice, BUT STAY AT THE RESORT. It's like the worse inner city you can imagine surrounded by beautiful beaches.
Only place I have ever been mugged. Turning point was when someone was shot twice in the chest 2 blocks from the private school my daughter was going to...at 4 o'clock in the afternoon...
"Absence of evidence is not evidence of absence. - Carl Sagan