I’ve had a bidet for a while now and here has been my experience:

• I have a cold water bidet which used to annoy me a bit but I soon got to the point where I don’t even notice or care. At any rate, there are warm water bidets but you will need to run a hot water line off of your sink likely.
• You get water on your ass which to me feels cleaner than an ass which hasn’t been washed at all. Using paper in public places now makes me wish bidets were more widely used because TP alone doesn’t leave me feeling clean anymore. I suppose you would get water everywhere if you were squatting instead of sitting.
• You can let it air dry but even if you don’t, it takes a lot less TP than wiping without it. We go through less than half of the TP that we used to before getting the bidet.
• TP is convenient but not cheap. You can get a quality home bidet for $20-$30 which will save you a good amount of money in the long run since you won’t be going through nearly as much TP.

I used to think bidets were weird until I started using one on a regular basis. Now I can’t live without it.