Liverpool manager Brendan Rodgers was happy to progress to the Europa League group stages, despite being given a scare by Hearts at Anfield.
The Reds held a 1-0 advantage ahead of the return match at Anfield, but that was cancelled out when goalkeeper Jose Reina let a David Templeton shot squeeze through after 85 minutes.
Extra-time appeared to be on the cards but Luis Suarez then grabbed an equaliser two minutes from the end to see Liverpool sneak into the group stage 2-1 on aggregate.
And the Reds boss was full of praise for Hearts' performance on what proved to be a nervy night.
"The objective was to get into the group stage and we got there," said the Northern Irishman.
"We made hard work of it but congratulations to Hearts, they played well and it was always going to be a difficult game for us.
"We were wasteful tonight but we got through, which was the most important thing.
"Hearts worked hard but Jose Reina was never really threatened in goal. But we still needed to respond to their goal and we got that response.
"We didn't lose the game which is important. The boys have been excellent so
far this season, I can have no complaints.
"They had to dig in a wee bit tonight, it was important we kept the faith but that final ball just didn't allow us to get the goal a bit earlier. But I'm delighted to get through."
Meanwhile, midfielder Stewart Downing, who was employed at left-back by Rodgers, was relieved to get through to the next round.
"We knew it was going to be tough," he said. "We made more hard work of it than we should have done.
"We were a little bit wasteful in front of goal.
"However, the manager stressed to the team 'don't go down under pressure', and I think we bounced back well.
"We created lots of chances we didn't finish though and we have to be more clinical in front of goal. That was a lesson for us."