Nobody has it, so people don’t see/experience them to to change their minds.
Having said that, I tried it once on holiday. It only got rid of half the ‘residue’, so I’m not really convinced enough to spend money on one. Another issue is that the reservoir and pipes are hidden behind a tiled wall. Installing one isn’t going to be a 5 minute job.
Nobody has it, so people don’t see/experience them to to change their minds.
Having said that, I tried it once on holiday. It only got rid of half the ‘residue’, so I’m not really convinced enough to spend money on one. Another issue is that the reservoir and pipes are hidden behind a tiled wall. Installing one isn’t going to be a 5 minute job.