Need advice on freight forwarders

Hey guys I need help choosing a freight forwarder
I have a 250kg 0.5cbm package that needs to be picked up from a factory in China and shipped to Melbourne

I have contacted a couple freight forwarders from alibaba and in Melbourne

1. Melbourne based forwarder $1000 usd Pros- seems very professional and reliable, has listed a full list of every single fee involved in the process
2. no language barrier
3. Established company

4. Will handle everything including customs Cons – bit more expensive

5. Alibaba Freight forwarders $600 usd Pros – Cheaper Cons- language barriers

6. might have to handle customs myself

What questions should I ask the freight forwarders to ensure they’re legit? I’ve heard a lot of forwarders on alibaba will hold onto your package and ask for more money. Just don’t want to get scammed.

Any advise will be greatly appreciated