Based on my experience with the 3 row Nissen units sold for Volvo and Audi, the quality of workmanship that once marked the Nissen product as worth the extra $$ is just not there anymore.

The only saving grace is they can be repaired by a rad shop easier than the Aluminum/Plastic units but again most shops charge a flat rate that could be equal to the cost of a Aluminum/Plastic replacement.

What about Blackstone? Do they mfg for MB?