My 300E has a very firm shift - all of my MBs have been like this. Compared to some American cars I've driven the MBs have a very solid shift - I wouldn't call it rough but it is certainly more noticeable than other cars. If yours is slipping or shifting late/early, that would be a problem but if it is merely a solid shift, it is probably ok...
2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
1977 280E - sold
1971 250 - retired
"And a frign hat. They gave me a hat at the annual benefits meeting. I said. how does this benefit me. I dont have anything from the company.. So they gave me a hat." - TheDon