The glass was clean. But there was soap scum and buildup underneath and on the plastic strip.

Here's a close up of the built up grime. (Gross! I know!)

It was super, super easy to remove plastic strip. I just had to grab one end and pull down. I did have to use a little muscle and tug quite a bit, so keep that in mind if you try it.

I stuck the plastic strip in the tub, sprayed a few squirts of cleaner on it, and scrubbed like crazy with a hard-bristled cleaning brush. Then rinsed and repeated. Twice!

Since the plastic strip was removed, I took a minute to scrub the entire glass door...all the way to the bottom. Then replaced the strip. Easy. Peasy. And almost new!!