They are as polite as can be given their limited English skills. We felt like they really wanted to help us.
They do not give any bonuses in chat. That would be a lot to expect from a casino at this level.
They can be fast. Or they can take forever to provide a response. It all seemed to vary by question.
From their limited perspective they were decent at their job. The problem is making yourself understood to them.
Their English is quite honestly awful. They have no clue about any common expressions in the English language.
The live chat did load up very quickly. We were glad about that. They really do seem to want to help you out.