Rodriguez joined the Reds from Atletico Madrid in the January transfer window on a free transfer.
“It’s going fantastic so far and I couldn’t have hoped for better,” Rodriguez told the club’s official website.
“It’s so different to daily life in Madrid, but I think I am settling in and it’s even better here than I expected it to be.
“Gradually as the weeks have gone by, I’ve been getting used to daily life in the city. I think it will be even better when I’m more settled.
“It’s totally different here to the football in La Liga. Certainly you are aware of the fact it is a lot more physical, tougher and aggressive – they are the big differences.
“But wherever you play football in the world, you still play with a round ball, so you get used to it.
“What’s more, I really like the competitive, physical aspect of the game. I think it suits my style and I’m enjoying it.”