Yes, many owners of the ScanSnap iX500 have had a relatively good experience for a few years. They apparently were not bothered by (or didn’t notice) the substantial problems with OCR and with scanning to multi-page PDF files from late 2016 to early 2017 due to Fujitsu’s software update problems (related to a macOS update; see post #14 above).
The iX500 was introduced in January 2013 - 6 years ago. The S1500M (my model, functionally similar except for wireless capability) was introduced in July 2009 - 9 1/2 years ago and just became effectively obsolete. The new software can’t be used and no software updates will be available going forward. The scanner will not function with current software after macOS enforces its already-announced 64-bit software restriction.
1.When will the ix500 become obsolete, given the history of the S1500M? (No answer expected; no way to know this)
2. Did the software upgrade for your iX500 come with the restriction that it is limited to your current computer? Another forum member (I think it was @tomalmy) elsewhere on this forum made this observation, as did @fubar in this thread.