I've had mine for 25,000 miles and it's great. Yes it has some draw backs but what car doesn't? Honda's have crap axles and massive camber wear when you drop them, these cars have crap motor mount rubber, and yes a slight vibration when the balance shafts are removed. BTW, ITS A MASSIVE 4 CYCLINDER! Of course you'll fell vibration from it. If the mounts are bad, the BS removal will make it worse until you get urethane replacements.

At anyrate, I've killed several cars in mine due the 6 speed being killer from 1st thru 4th. And yes it has a gob of torque that you will not find in a Honda unless its has a big cam or turbo.

Food for thought.