I made Chrono Cross,Chrono Trigger Soundfont 2,Final Fantasy 9,Koudelka,Okamiden and Seiken Densetsu 3,the others aren't made by me,founded them on William Kage site or on the web searching.
Obviously no,it's not 100%,there were some problems with some instruments with the loop point enabled or disabled,and sometimes when the instrument is in bad quality-buzzing-clipping,i don't save it for the final SF2 file,but i'm happy with these and that people are using them,it's always interesting to hear new music with video games soundfonts because of the nostalgic feel in it,each game had a musical identity and don't sound the same,it's fascinating.
I use FL too,Soundfonts are easy use inside.