Summer signing Benitez stepped up after No1 Dean Henderson was ruled out with illness.
The former PSV Eindhoven keeper told Palace TV: “It's my first game in the Premier League, so I'm very happy. Of course, we wanted to win this game, but the draw is also positive for us.
“We played a good game against a good team. They stayed really strong in the back, so we are happy with this point.”
On making his Selhurst Park debut in the Premier League, he added: “It's always special for me to play here on this pitch, in this stadium, with our fans. One game in the Premier League is always special, so I'm very happy. I tried to enjoy it.
“Of course, it's difficult sometimes to enjoy because you stay focused on the game, but I really enjoy it and I think we played a good game with all the team.
“We played a good game. We tried to change a little bit in the second-half to play more, but it's always difficult in the Premier League. You have most of the teams playing very well."