This works exactly as advertised. So why only three stars?

Doing laundry while traveling is something mostly done by ultralight packers. Think of people who travel the world from one bag and you'll have a good idea of who needs this bag. But since this thing is so large and heavy-duty, it takes up way more space than a standard dry bag would and as a result, is perhaps a bit less desirable if space is a concern. For less money and with less space consumed in your luggage, you could take a standard dry bag with much lighter material and less space. All you would really miss out on is the instructions printed on the side, the clear window, and a few nodules that help you agitate the clothes.

While it's not huge, it's bigger than I'd hoped. While it probably will fit in your bag, it's bigger than it needs to be and less would be way more.

I am a new user. If this is only a robust product - it is fantastic: easy to use, easy to let air out, few drops of CampSuds All Purpose Cleaner / Sea To Summit Wilderness Wash are enough; just one rinse is enough - however I still prefer two rinses.

Works great! Took it camping and washed a few things in it. I like to give a second rinse because of sensitivity to soaps but everything came out smelling fresh and clean. Even took it to Florida so we could wash a few clothes in the evening or during breaks during the day so we didn't loose a lot of time (and money) doing laundry when we wanted to be playing.

I really spent a lot of time contemplating this purchase. I am a minimalist traveler (three weeks in Asia in a book bag). I figured that being able to wash clothes would lighten my load by not needing to pack as many basics, and would more ban offset the added weight of this bag (which is negligible). There are pros and cons to this bag.
Pros:
- it is certainly easy to use. For the customers who have complained about the valve being to small to push a lot of air out of efficiently- I simply pushed out as much air as possible before I rolled it up. Then I used the valve to push out the last bit of air.
- it serves very well as a laundry bag. I would put my dirties in the bag until I was ready to wash.
- it is a compact way to have clean clothes without having to hunt down a laundry mat or spend time getting a less efficent result in a sink.
- it takes up such little space, even for a minimalist like me.
- it does a fair amount of laundry in a load. I would say I was able to get a weeks worth of underwear and socks, as well as a few shirts or other similar items in one load.
Cons:
- price was certainly a factor. While traveling in Asia I could get 10kilos of laundry done for a couple dollars, and did not have to wash or dry myself. In other countries where laundry is more expensive, or simply not available one would have to weigh the cost for themselves.
- I felt that to get a true clean you would either need to do a kid twice, once to rinse the dirt and another to really clean. You could also pre-rinse in a sink.
- time, I know it says that it you "agitate" for about three minutes. The reality is that you fill, squeeze out air, agitate, dump out used water, refill, reagitate, then spend a lot of time wringing out clothes for awhile to make them dry enough to air dry. For two loads it took me about 30 minutes of sitting on my shower floor going through the steps- so let's call it 15 minutes a load.

I would certainly recommend this to other travelers, especially backpackers/campers.

I bought this for camping and traveling. It is light and packs small. Great for long camping trips, especially backpacking, when you don't have the space for a lot of clothing. Now you can have clean socks and underwear as long as you have access to water, or bring your own water. I also use it for traveling and staying in hotels because sometimes I question the cleanliness of hotel sinks for hand washing. My only issue is that if you are too aggressive with rubbing the bag, it can leak a little. This product would also be good for beach trips or river trips for a quick wash of swimsuits to get rid of the salt or river stink.