This looks like a definite case of Segestria florentina to me As for being worried it depends on weather you have overwhelming urges to stick your finger down the tube web or not. They are capable of giving a hefty bite, but left alone they'll cause no harm. It would be quite unusual to find just one have you looked around nearby for any more and do you live in one of the known distribution areas?
Thanks, I will leave it alone then.
I haven't seen any other members of it's family............yet!
what is its personality.
dose it have more of them
is it good for any jobs