My family rented this house at Strawberry Lake for a week for Noltepalooza 2014! We had 16 people (8 adults and 8 kids) ages 15 months up to 65. There was plenty of room for everyone. The house is beautiful, well-kept, and well-stocked. There are many things there not even listed on the site such as a high chair, booster chairs, pack-n-plays, tons of toys, etc.
The lake is beautiful and peaceful. The pontoon boat and kayaks were used daily by the adults and kids. The kids were able to fish off the shore and catch small fish, but we were never able to catch any big fish out on the lake.
We did two day trips - one to Sawmill Tubing in Big Rapids and one to the Dunes at Silver Lake. Both places were great and within close distance.
The fire pit was used nightly and we were able to buy enough wood in town off the side of the road to fill the back of my honda pilot for $30, and that lasted all week with some to leave behind.
No complaints at all and we definitely plan to go back and make this our annual family vacation!