Captain Steven Gerrard conceded Liverpool have "a lot to learn" after a battling 2-1 victory over Ludogorets in their first Champions League game for five years.
Mario Balotelli got his first goal for the Reds after 82 minutes of toil but Ludogorets equalised in the last minute of normal time to silence Anfield.
Gerrard, however, netted a penalty in time added on to hand Liverpool all three points despite a shaky start to their Group B campaign.
"Looking at the game as a whole, we did okay. We didn't do better than okay," Gerrard told ITV.
"(We have got) a lot to learn. I thought they caused us quite a few problems on the counter-attack, just like Aston Villa at the weekend, so there's a lot for myself and the lads to learn."
He added: "I think taking maximum points, we go away to Basle now, if we can get another maximum points it puts us in a very good position but the key tonight was always going to be three points before the performance.
"But at Liverpool we always analyse how we've done and to judge that performance is, 'must do better'."