I haven't, but we have several of them in my area. We actually looked into buying there, but the level of commitment in cooking and other activities was a bit onerous. They have a following, and the prices in my area are pretty high. I haven't checked to see if they are on the same level as other similar type communities (ours are condominium ownership and attached dwellings).
I already did the appraisal last November. They wanted some additional photos and when I got there I asked a question or two (there are several free standing decks with tents, some "sleeping sheds" and a travel trailer covered with a portable carport with a tarp. She's getting $500 each. She dropped this term on me (intentional communities) and I said it sounded like a fancy name for a commune. She said exactly.
I didn't even know this term until this afternoon. I found the places website. To me, it's just a 2 acre country property with a 1960's SFR and a bunch of weird structures. Same as everything else in this area.
Utopian societies like Oneida (Oneidaware started from) same concept. I was just published a story about one called the Harmonial Vegetarian Society, a commune with a religious bent along the same line.