Scale length of a typical dreadnought is 25.36 or 25.5 inches in most Martin style copies. This measurement is from nut to saddle.
Shorter scale on a typically found on a 000 is 24.9″ (not to be confused with a Martin OM which is 25.36″) or 24.75″ for a J-45.
Shorter scale equals
1. Less string tension to tune to pitch
2. Less space in between frets ( I notice this on that pinky stretch)
3. Slightly darker sound
4. Easier bends
But
1. Highs may not be as “chimey”
2. Some may not be as loud
3. Lower scale length may seem floppy in drop D.
Try one out at your local music shop to see if it is for you.
Happy New Year !