He's been very good for 18 months, not 6.
Can't agree personally. He was awful when he first joined, has improved to "decent" and delivered some very good performances. Wouldn't say he's been very good consistently, not at all.
Haddaway, he's been easily their most consistent performer. One of their few that has put in good performances consistently, infact.
Honestly, I haven't really seen it, and I'm trying not to be biased. We'll agree to disagree. Not really seen much in him to suggest he's more than a decent player who can sometimes turn in good performances.
More generally, Liverpool will not be going far if they're relying on Lucas to be a key player.