さすがは '(as) expected (of X) / that's the X for you' is the stock expression for saying something lives up to its reputation. ただならない '(being) extraordinary / not ordinary' is a classical-flavored negative adjective form. 傑物 'a man of great caliber / an exceptional figure' is literary vocabulary. 素質 'innate quality / natural disposition.' お持ち is the honorific nominal お+持ち for 'having,' used with the explanatory なのですわ (feminine emphatic). The whole sentence is a heavily feminine, slightly melodramatic tribute.