We just bought this and brought it on our first camping trip of the summer. Since the most scenic campgrounds tend to have the fewest amenities, being able to take a shower, was quite a treat. I am usually READY to go home after the second night of camping, but all fresh and clean with our handy shower, I could stay for a week!There was a big nail in the tree that we used to hang the sunshower. Filled, the bag gets very heavy (~38lbs), so you would need a VERY sturdy branch for hanging. Even with only a couple of hours of direct sun, the water gets warm enough to shower under. It held enough water for all four of us to take a good rinse and I used quite a bit of water washing my hair, and there was still some water left over. We are now brainstorming ways to set up the perfect privacy curtain, since the only unpleasant part of the shower experience was being cold in a wet bathing suit in the colder air at dusk. On our last day we only filled it up half-way to heat up faster so that Dad could take a rinse after breaking down the tent and packing up the car. It made for a much more pleasant ride home for all! This is definitely a permanent fixture in our camping tote!The only thing that was a bit tricky (but not enough so for me to knock off a star) is that filling it at a campground water spigot is a little hard to do alone. As it fills, the bag gets heavy, and it is difficult to both hoist the bag high enough and keep the spigot inside the hole, which is on the side of the bag, as it continues to fill it. A second set of hands for filling it up is certainly helpful. If they could somehow get the water fill hole in the top of the bag, instead of flat on the side, this might make it easier to fill.