The Reds raced into a three-goal lead before half-time as Rafa Camacho, Sheyi Ojo and Adam Lallana - wearing the captain's armband - all struck ahead of the interval.
Klopp said, "A lot of good things; apart from the goals [conceded] everything was pretty much good. I liked the second half as well because although we were not that ruthless maybe, we created a lot and played good football, came in the right spaces, last third not as good as first half but it was pretty good.
"First half was obviously good. We had more chances to score, but then we conceded the goals, which is not nice. That's the situation – 3-2, nobody injured and everybody had 45 minutes intensity, that's what we wanted."
Klopp continued: "Rafa, especially in a position he is not used to playing – although he played there a few times for Stevie [Gerrard] as a wing-back. He played as a proper full-back and had good organisation. He can do that and I like it. He is full of football joy and is doing really well. Ojo and Ryan maybe had not the best last year, but they came [back] here and wanted to show something – and they do and their training is good. I am fine."