I've been before. The venue is quite nice (the Oasis clubhouse). It is a high end home featuring a large back yard and pileta. In terms of people, the last time I went in April of this year, there was a good turnout, at least 100 people. Mostly expats, but some locals as well. Overall, a good, interesting crowd. I imagine it will be the same next week, as long as the weather is OK.
And no, I don't work for InterNations (though I am a member) or Oasis, so I promise that my opinion is unbiased