[Tigernmas]

Hello fellow technicians

I would like to specialize in Mercedes and BMW and I guess many beginners would like to get some guidance when buying hardware.  

From my understanding the best thing to get is an C4 with DoIP, this should be compatible with most of the important software? 

When asking in boards and groups there are always people stating: "I have the best interface" or "I know somebody who has the best interfaces". 
Sometimes they even tell they have original interfaces. 

If you go to Aliexpress or similar you read A+ quality the next one states it is A+++ quality and then they add for example 2022 to it so it seems to be the best.

So maybe we can get together a guide what you should look for?
What are signs for good or bad quality?

Regards 
Matthias