The Scottish midfielder has been one of the Redsâ€™ best-performed summer signings so far this campaign and Dalglish was delighted with how has already provided so much for the Anfield club since arriving from Blackpool.
â€œHe's only endorsed what we thought when he arrived," he told Liverpool's official website.
"Charlie played very well but there's nothing he's doing that has surprised us.
â€œHe was someone we wanted to get in January but it didn't happen," he added. "We were patient and got a discount on him in the summer.
"I don't think it's been a bad bit of business. I don't think he will rest on his laurels either. He wants to push onwards and upwards and so do we."