Hi Arzi, Fully understand as I have small hands and fingers too and the EX-5 is my first 5 stringer. One advantage is that it gives you somewhere to rest your thumb when using fingers on low E string but the best feature is when playing in 3rd to 5th positions where you would normally consider open notes the low B provides a fretted option for the low E and notes below down to B. After a few more hours mucking around I will hopefully discover more uses for that very fat 5th string.
Only strung mine up about 2 hours ago and just fine tuning the intonation however neck will need a few more days to settle so I won't get too precious about the setup today.