The best thing about it was all the functions that existed for string manipulation, since every data record was just a big string with demarcations for columns (and values and subvalues, making it technically a 4D database). You could use it to consume nearly any data format and throw together a quick-and-dirty parser in minutes. Really good for rapid proof-of-concepts, but occasionally challenging to maintain data integrity when you have all the rope in the world to hang yourself with.

I miss working with it, compared to SQL which is stupidly rigid and obnoxiously fragile in comparison.