I purchased a similar shower panel from another distributor on Amazon about 4 years ago, and loved it. Unfortunately, it has a master 4-way valve that controls the flow of water to the various jets, and apparently the valve became corroded and nearly impossible to turn. I quickly learned that there were no parts available to make any kind of repair, so my only choice was to replace the panel.After looking at a number of similar panels, I obviously chose this one. This unit has 5 independently-controllable outputs, each of which is controlled by a simple ball valve. A single master control valve is used to set the temperature of the water by mixing the hot and cold inputs, and this contains a thermostatic or scald-preventing feature for safety. Due to the design, once you set the temperature you don't have to change it. Because of this design it's also possible to use multiple outputs simultaneously, creating a custom shower experience like no other I've experienced. There are four body sprays on the face of the panel, the two upper sprays operated by one valve and the two lower operated by another. The hand held spray is operated by another valve. A rainfall spray is located at the top of the unit, operated by it's own control, AND the unit has a "waterfall" immediately behind this spray that's operated by the fifth control. I happen to have excellent water pressure, so I can use all four body sprays plus the rainfall spray simultaneously to provide an invigorating spray from head to toe at the same time. With minor adjustments I can focus the strength of the spray just to the area where I need it the most, which is typically my shoulders and lower back. However, I have to say that the waterfall is probably my favorite feature... who knew that a sustained flow of water like that could be so relaxing to the head and neck, particularly to those of us who suffer headaches? I'm really fortunate to have a tankless water heater, as it's not uncommon for me to stay in the shower for 30 minutes or more... it's very therapeutic.Regarding the construction: the body of the shower panel is brushed stainless steel, an it feels very sturdy in its construction. Each of the handles, and the hand held shower, are bright chrome and are of a solid build. The water inputs for this panel, like the one it replaced, is provided by two braided-steel wrapped hoses. The connections among the various valves use a heavy duty, reinforced white vinyl hose. There is no back to the unit... it's open from bottom to top. The shower panel hangs on the wall using two hangers that bolt to the wall that two straps on the back of the unit slip in to. While it seems simple in approach, the panel seems very sturdy when mounted, yet it can easily be lifted off of the wall for cleaning or maintenance as needed.Will this unit last forever? No... but it's a very cost effective solution to provide a wonderful shower experience. Had my other unit not failed, I wouldn't have found this one, which is SO much better. I do expect that this unit will last significantly longer due to the absence of the multi-directional valve. I've read several reviews that point to this valve as the weakest point in the design of similar panels, which is one of the reasons I chose this particular unit. Built in shower systems that can provide the same type of experience can cost thousands of dollars.I highly recommend the unit to someone looking for this kind of shower panel. Please be aware that it will not fit into a standard shower unit without making some plumbing adjustments to accommodate the water inlet hoses. My original panel was purchased to install in a brand-new bathroom renovation and the water supplies were installed specifically for this type of unit. Because of that, it literally took me 15 minutes to install this unit.The bottom line is that it creates a wonderful shower experience that can be customized to the particular likes of the shower user. To me it's worth every penny that I paid for it, and more!