We have one -- they are a pain in the butt to clean. I had been using my method of Scrubbing Bubbles, a Magic Eraser, and taking a shower while scrubbing the thing with my feet, but I found a new solution. This was about 500% easier, and unexpected. Easy Off Fume Free oven cleaner. You spray that on, leave it overnight or 8 hours, then simply remove with a sponge or rag and a little water. It comes right off -- I only had a couple of places that needed any sort of real scrubbing to get loose. I did read online though you have to use the Fume Free because it has a different chemical composition than the other ones.

Here's an example: https://youtu.be/lfMSlJp9qBE?t=21

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"All crowds boycotting football games shouldn't care who sings or takes a knee because they aren't watching." - Nas

X40 or limeaway works better

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the world will always the world. your entire existence is defined by your response.