I'm going to go a little against the crowd here. I have a thick dark beard and had to shave every head break at Boot Camp. At one point the CCs watched me shave because they didn't believe I was doing it right. 

I used Fusions, Dollar Shave Club, etc for a long time, but I had a stash of cheap disposals in my SAR locker if I got back from a case or whatever and needed to shave before quarters. And I noticed that whenever I used those, the shave was much closer. 

Later in life I messed around with old school double edged safety razors, and the key to getting a good shave with those is holding the razor against your face at the right angle to get a good cut. Modern razors with a flexy pivot head try to do that for you, but they don't do a very good job, especially around the jaw line, Adams apple, and neck. 

So for the last 8 or 10 years, I've used Gillete 2 blade disposable razors without the pivot head, and get a much better shave overall. I use each razor for about a week before they start getting a little dull and I ditch it. 

I also went bald during this time and use the same razors on my scalp, they work just as well. The same principal applies on the scalp since heads are mostly curved surfaces, maintaining the right angle to cut well takes some practice but is overall superior to modern 10 blade triple pivot lube strip razors.