The 27-year-old joined the Welsh club from Spanish outfit Valencia in the summer and scored his first goal for the Swans in their 2-1 victory over Wigan Athletic in the Premier League on Saturday.
"I'm loving the Premier League," he told Swansea's official website. "After a few years playing in La Liga it's a different type of football with more tempo and passion in the stands.
"But the fact Swansea trust me as a player was the main reason for joining the club. In return, I will try to play my best football on the pitch. I'm delighted to score my first Swansea goal. It was only my third start of the season, but the goal helped the team win three important points.
"I hope this goal will help me for the following games to get more confidence and become a regular in the team. I'm still settling at the club, but I will work hard to keep my place."
Swansea are currently 10th in the Premier League table with 11 points from eight matches.