The midfielder concedes he gave up a lot to move to England last summer.
He told Radio Marca: "It was not an easy decision despite all the good it entails. In Seville I had everything: I was happy, I felt loved, valued ... but to keep growing you need to leave your comfort zone. You need new challenges and responsibilities and I felt that the time had come.
"Now I have to enjoy it to the fullest.
"Above all, the stadiums are the difference. They are full and you breathe a healthy and very beautiful environment. The supporters are mixed without incidents, something that in Spain is not so normal.
"It is a very different football. The teams are very direct, always going forward. In Spain football it is more technical and tactical, more leisurely."