I know some people who live there year round and they love it. I personally would consider living there year round if I were in your shoes.
The public beach is really nice, but small. Nice playground for kids. If you live in Richmond, Hinesburg or Williston you can get a pass for $25....residents of other towns for $50.
Here is a link to the Lake Iroquois Association in case you haven't seen it yet.
lakeiroquois