We like them too. This one’s almost 30 years old and has been re-poted ,whacked, trimmed and de-thatched numerous times but always back to the same pot to limit the size. It was a gift from my Mother-in-Law many years ago.
They must be pretty tough! It doesn’t get a lot of special care and still blooms profusely each year. Sometimes twice a year.
I love your patience!!! Right now I am working on my 2022 garden and I don't have to mess with any indoor plants. I used to have a christmas cactus and you can see the roots that form on the segments, easy to divide them.