Ah, it seems I'm not the only one struggling with this issue. I have to admit that none of the cats before these two ever complained but Maesi is a character lol.
I think, especially with Luna being fat (it's the truth) this is much better for her at least so she doesn't have to lay down (almost) to drink/eat. It seemed very uncomfortable. But I will be happy when the ceramic bowls arrive so the drinking can be done from there..
Then the hunt begins to find a replacement ceramic bowl for these metal ones containing their food still. Sadly, so far I haven't found the right size yet.
But it seems ceramic is the way to go indeed. Thanks for sharing!