Considering Algarve, Portugal....

While searching around the world for a place to retire (or semi-retire) Portugal continues to come across my radar.  The cost of living remains a little unclear; can anyone respond with thoughts on rent, food, utilities, health care, transportation options, entertainment......    the ambiance of Algarve, do locals like expats?

Thoughts?

Depends on what you expect as a lifestyle against your current level.
You don't say where you're currently located so it's a little difficult to offer a view.
One thing though, I've found the Portuguese to be among the friendliest to Brit-expats - despite the annual outrageous behaviour of summer-time drunken Brit-louts.