I bought this in pre-production.  It arrived last week.  Had it installed in about 15 minutes.  Works pretty well.  I had never used a bidet before, so that was a little new, but it works pretty well.  Every now and then it seems that the spray pattern varies.  Not sure whether this is from hard water, where I'm sitting, etc.  It's affordable.  If you think you might be interested in trying it, I suggest you do it.