So far we have mainly attended house/hotel parties as it feels more like a group of friends getting together for a social. Now, that being said. The first one we went to we didn't know a soul. It was good though as I had already gotten a good vibe from the host and hostess over the phone and mail prior to going.
To date we have had nothing but wonderful experiences at these parties... have one today as a matter of fact, in about 3 hours.
We've developed what we feel are mainly social friendships so far, nothing super close or 'best friend' level, but we are keeping our eyes open for that.
Have a fun weekend everyone!