What bothers me and keeps me from using it is the fact that it seems to be a one man show.
I could really use this, but my bookmarks have too much time invested to be put on a service I cannot trust completely to stay around.
What would happen to the bookmark collection if main dev is hit by a bus (heaven forbid) or just lose interest? Could not find anything on this in FAQ.
TOS mentions "If the site ceases operation, you will receive an opportunity to download your stored data in a format suitable for import into other bookmarking services."
But the concept seems well thought out, can a current user confirm my worries are unfounded?