We use them every day and never think about them much.
But, alas, I am faced with replacing a toilet in my home.
While recommendations are fine what I am really interested in is whether I can just buy any toilet (within some reason…the stuff on the shelf at Home Depot kinda things) or if I need to be worried that they all differ a little and once I am installing one there will be all sorts of trouble? Things like how mounting bolts line up or whether the tile needs to be changed around it or the plumbing is sufficient or whatever.
If there is one thing I have learned from owning a home it is that nothing is as straightforward as you think it should be when it comes to home repairs and upgrades.