I often get joint pain and lots of fatigue from having chronic illnesses. Even at 24 years old, I regularly had a hard time in the shower and had actually fallen before. I assumed a bench would require complicated installation, but I was so wrong. Dr. Kay's bath seat uses a completely tool free assembly. It was easy to put up, but not flimsy. It holds my weight very well. The rubber bottoms don't slip.
I love that it is really lightweight, too. I can easily grab it and put it in the closet when I'm done. Most shower seats are permanent, but this one's great if you're renting or have others in the house.
I received one for free in exchange for my honest and unbiased review.