the squirt really does though, since you're not smearing it around it's confined to a small space and the squirt clears it really easily. speaking for mine that is, i have an adjustable fan pattern and it reciprocates forward and back (also adjustable) with adjustable temperature water. the non-electric cold water ones might not be as efficient but suspending soil in any amount of water makes it easier to remove. then mine has a adjustable temperature fan that drys you off save for a couple drops of water on the scrote or taint
had mine for about a year and a half now, i seriously don't think i've had a shit since, that i didn't walk away clean from with more than 3 squares of tp. and that's just because i don't want wet fingers and i don't let the whole dry cycle go out of impatience. it's crazy.
i don't care as much about the paper waste on an ecological level, but i had to replace the cast iron drain pipes in this house and they were PACKED with tp that turned into some kind of concretion. i live out in the sticks and we're not on the sewer here so that's a lot of junk that's not going into my septic system/leech field which is a huge plus to me. probably offset the $350 cost of the bidet through saved maintenance cost on the septic already. plus my asshole is clean.