I used my new Merkur 38C for the first time this morning. This is a BIG and HEAVY razor. Finish is very impressive, and the weight of the razor does most of the work. The razor head is the same as the HD.....so I would describe using it as being able to use a Futur without having to think!!!!! I can think of no downsides at all......however results are similar to those when using an HD....so it is ideal for those who like the extra weight, but find the HD handle to be too short. A full review will follow in due course....once I have tried a selection of blades.