The Belgian youngster has also been praising new boss Brendan Rodgers.
The young Belgian was secured by manager Brendan Rodgers last summer from Lille after impressing at the World Cup finals with Belgium, but returned to the French side on loan for the season just gone.
There is much hype surrounding the 20-year-old after the Reds struggled for goals this year, with the likes of Mario Balotelli, Rickie Lambert and Fabio Borini all failing to replace long-term injury victim Daniel Sturridge.
And he says he is pleased to be heading to the Premier League, although he believes he and his side should be challenging for the title, not the sixth-placed finish they managed in 2014/15.
"I'm very happy to be going there,” he said.
"I think Liverpool is a wonderful club that deserves to be at the top and to be honest with the players they have, with the quality they have, then they should be finishing at the top of the league.”
Origi endured a difficult spell in France last term, having gone a number of games without a goal and being named in French newspaper L’Equipe’s worst team of the year.
He did, however, manage eight goals in his 33 appearances, something none of Rodgers’ current options managed in the Premier League. Of all the things Origi is looking forward to, though, it seems working with the Northern Irishman is top of his list.
“Brendan Rodgers is a very good coach and he has proved that so it will be very exciting to work with a world-class coach,” he added.
“It is important to be at a good club where people believe in you and where you feel good and at Liverpool I had a really good feeling and they have experience of working with young players.”