Costly, but well made.  Product features poorly detailed: they say it is "adjustable heights", but in fact it only goes 4" higher than where you install it; no incremental adjustment - rediculous (and one of primary reasons we bought this brand). For something so costly and well built, it seems they could easily make it adjustable within much more useful increments (1 inch).  Nowhere is this detail described and it wasn't until I had it unpackaged and ready to install that I found it out.  So my wife has to use it at her preferred 35" only - if adjusted, as they provide, it would be 39" and she would need a stepladder.