Ranked in these QuestionsQuestion Ranking
Pro Really fast
Pro Great for comparing and sorting multiple images
Pro Lots of features for simple editing
Pro Best keyboard controls
Pro Editing photo levels
Con No rating of photos
Con Sometimes really sluggish
Showing the wait cursor for multiple seconds like executing large operations in the GUI thread.
Con Free version is not valid for business usage
Only good for private use, small business licensing is very expensive.
Con Broken SVG Support
SVG images do not show at all (at least for me)
Comment if otherwise
Con Cannot sort/filter by EXIF data
Many times it's useful to sort by the time/date your photos were originally taken