A bit. I've had to start over a few times due to incompatible builds so I haven't gone super deep. Even though the change only affects crafting recipes it was really hard to wrap my brain around it. I kept going to the perk menu and then realized that that wasn't where I was going to be able to upgrade my tools lol. I felt like a bit of a noob. It isn't hard to understand at all-- its quite intuitive and you feel like you are finding bits of information here and there and piecing it together to learn how to make something new or something better. It emphasizes the gap between the old world and the present apocalyptic world. The old world has all the secrets and you have to find them in order to learn how to increase your tech level.
Its fun honestly. But, then, I'm apparently one of the few who actually enjoys scavenging in the game. You know how TFP operates: when they introduce something new they plaster the game with it so magazines are plentiful. You find them everywhere. That might, of course, get nerfed a bit as people play and report back but it is fun because the magazines feel valuable and you get them at a consistent rate. It is engaging from the sense of atmosphere that I mentioned in the last section but in practice it is the same as finding books. You click to read and move on. It can be a bother I guess if you have to click on ten or so at a time to read them all but then again not so much of a bother that I'm not going to click
As for finding what I've perked into, it is definitely a subtle boost. I seem to be finding a wide variety of magazines even though I perked into spears. I'm not frustrated for a lack of Sharp Sticks in loot but I wouldn't mind finding more so I really think that the boost is not going to cause us to only find certain magazines at the expense of others. It is simply going to help us not feel the frustration of never finding what we need.
I can't say yet for the whole game but at least in the early game I have been mostly crafting above what I find most of the time. I did find an orange level iron pick in a car on day one but as we all know it would be stamina and hunger suicide to use it anyway at this point so it is in a chest for later. I think this will depend on how much looting someone does. If they are playing with the purpose to grind magazines as quickly as possible I
think they will always probably craft well ahead of what they loot except for occasional lucky finds. If they don't loot at all and go up in level doing other things then for sure they won't be able to craft things better than they can find.
I've already said that until something is implemented in the game we aren't going to reveal details. So just like I can say that there is a new workstation and a new quest type I can tell you that there is a number.