Played against the Chinese guy for a few hours and he seemed very good.
He's very aggro post flop and likes to put people to the test for big chunks of chips. Definitely not scared to put a lot of chips in and did it several times and I can't imagine he had the nuts every time.
Given what I know of him and the fact that you're new to the table I'd say this is a call.
Don't expect to have him dominated though. He's either got some nice suited connectors, a pair or AQ / AK.
One more thing. Don't waste your time trying to wind Johnathan Butters up. He's better at it than you are.
At 150-300,he limped utg plus 1 out of 25k stack ish,i jammed for 5.6k from cut off, he snapped when folded back round to him wiuth 910ss lol