I installed the Niveal Alvin shower doors in my bathroom.  I felt that the instructions were clear and I completed the installation myself.  The doors were packaged well and all the necessary parts were included in the box.  

I noticed that my bathroom looked upgraded after I installed the shower doors. It brings more light into the shower area and there's a little more space in my bathroom.  I would recommend these to someone who wants to upgrade their bathroom tub but doesn't want to hire a contractor.