Has anyone every installed a steam shower from a kit? We are looking at various brands, particularly Ariel, Royal and Ameristeam. Most seem easy to assemble, etc. However, specifically does anyone have details about:

1. The quality of their construction.
2. Their ruggedness (e.g. does a 5-year warranty mean anything if you have problems every 5 months).

I am concerned because the instructions that are given ****** for them are obviously poorly translated which leaves me worried that the kits are a fiasco.

Thanks.
John.