NJ
I LIKE the Spell checker better
I LIKE the 'bug check' offers (to fix) solutions for many errors, but for some reason does not offer 'remove
this item' and only offers the Bulk Tool 'remove All Unused....'
I prefer Sigils Clip Editor (Menu driven) over the Snippet (User typing a sequence)
I LIKE that the Calibre Snippets are context assignable (I have CSS snippets as well as HTML code blocks or wraps. I use Sigils Clips to 'buildup' search or replace terms (for when a pre
saved search does not exist)
Note:Some of this preference may be due to MY failure to understand

the generation and use. AND that there is no easy way (even semi automated) to import into Calibre ANY of the Saved Clips or Searches.
Semi-automated means Show the Sigil version on 1 side (select from) move to Calibre Map valid sections and require the user to fill in the remaining
blanks, correct (red) trapped syntax differences