I don't have a corian bathroom counter, but I do have a lot of corian in my kitchen. I've had it about 2 years and am very very happy with it. That being said, I don't think it would stand up to hot curling irons or acetone spills.

As for cleaning and maintenance, superbly easy. I use greenworks and a paper or cloth towel to clean, followed by a plain water rinse to remove all the greenworks cleaner. No drying necessary and spots don't show on Pepper Ivory and Maui colors.

My daughter had a rental house with an integral white corian sink that was very hard to clean and had a lot of scratches. But I think that was abuse by years of renters using it. Even so, I would not consider an integral corian sink.

Corian's been around a long time but has fallen from favor I guess. I never could find a granite I liked, I wanted something with a lot of history (not some brand new product untested over time), and I've been very happy with corian in my kitchen.