OK first up, this is the most aggressive razor I have ever used. The reviews I've seen on YouTube are spot on. Having said that, I have rather thick facial hair and this baby goes through in a breeze. It is super efficient. Build quality is excellent. It's weighty so you only need a very light touch. You can get away with less aggressive blades as well. Normally I would use a Feather blade but on this I think that may border on insanity.
For me it's the best razor I have used for my personal beard profile, however for others it may be way too aggressive. I really enjoy using it though.
Thanks for your thoughtful review Tom, we really appreciate it. I concur with your assessment of the Merkur Futur Adjustable Safety Razor.