vvdi mb tool or mercedes instrument?

[mbsupport]

Hi friends,
I want to ask you which tool is better, I want to buy one of them...vvdi mb tool or mercedesinstrument.com ?

Thank you.

[Doraxu]

For Mercedes instrument, you can try VVDI MB tool or CGDI prog MB Benz Key programmer. The latter is much cheaper than vvdi mb tool.

Carkeydeals have the two tools.