simple and works but the temp adjustment needs improvment.its either too hot or cold .the unit should lwt you go down to 100* but on its lowest setting its around 120.unless ur a crab dinner you mite wanna stay out of thatThis product is so complicated to put together.. Plus it has plastic parts.. this product is not made for outside use.. it was so stressful trying to find 12 V converter in order to power the pump.. I tried to contact the manufacturer many times, they don’t answer the phone. Do not buy this piece of crap..Amazing thankless water heater. It's a must have item for both camping trips or off grid living. Super easy to use. Anywhere you can take a propane tank, you can use this water heater. No more waiting for water to warm up, simply turn it on and you have instant hot water. We use it at our barn during cold months when rinsing or bathing horses isn't healthy for them due to the freezing cold. Makes rinsing them easy and quick.My horses appreciate having a warmer bath as the weather gets colder and this heating unit is simple to hang up and operate. Easy to control the temperature so I don’t accidentally burn them. Also very convenient for camping. I can enjoy warm showers even if we don’t take the RV. If you are going to install it in an RV or camper van I’d recommend hiring a technician. Love the size and has good volume capacity.I'm very impressed with this shower overall but it does have some draw backs.PROS:- Easy to use, simple to setup.- HOT water and plenty of it.- Surprisingly efficient on fuel.- Fairly compact.- Seemingly well built and durable.CONS:- Flow rate is more than adequate but don't expect "pressure" similar to a home shower.- I found it hard to find the perfect temp and fluctuated between t0o hot and not quite hot enough.- Power requires D batteries and a 12v connection. Why not just run both the heater and the pump off of 12v and simplify the process?I think this is a great, affordable option for camping, truck camping, and off-grid use. It works very well and leaves little room for improvement. I'd recommend it!Works perfect, exactly as described! Absolutely love it!Works great. Was easy to set up and use.Works as it should, take your time to find your settings and its great! Great Value for the buck! Easy set up, wrenches included!