Fast De-Fragmentation Routines (Built In and 100% Transparent To The User) (No Need To De-frag)...
No need to defrag, that is wrong. SFS has built-in defragmentation that can run in the background still allowing applications to use that disk but you must still run degragmentation from external application.
File Names Of Up To 127 Characters...
AmigaOS 3.1 allows only up to 107 characters. Some other filesystems may support up to 255 characters or even more. But in AmigaOS 3.1 you are still limited to 107 characters.
Supports Notification & ExamineAll...
ExAll() support is not vital. It speeds up dir scanning but DOS can emulate ExAll() if it is missing.
Option To Have A Special Directory That Can Contain Up To The Last 350 Files That You Have Deleted...
Only up to 350 files? Are you sure? You can change limit (at least in MorphOS) up to 16384 files although I dont recommend doing so. (Using large .recycled dir fragments disk very fast.)