Those who want to spread the good news about cold water spraying on your dirty rosebud would give a shit. At least they would like to tell you about the life changing bidet.
You clearly used one of those adapters for a regular toilet. If you do it right, and get the new plumbing installed and an actual bidet, you can have confortable temperature water spraying on your dirty rosebud.
Also no, I don't own one... yet. I've just looked into it.
I have had both a cold water one and a dual temp bidet. By the time the water heated up I'm clean so I decided not to even bother hooking the hot water up.