One of the issues of the perceived low quality is the massive variance in NE2000 silicon. Basically everyone cloned/emulated the chip, but they have subtle variation, features, bugs. So a generic driver like Linux has to deal with a lot of damage.
I have a vague memory that there was one particular revision that had some kind of flaw which made it undesirable; It would drop DMAs or interrupts or something like that. The A revision maybe? I'll probably remember at some particularly annoying time.
If you like this kind of thing I also highly recommend this 43 minute history of Creative and the Sound Blaster: https://www.youtube.com/watch?v=VTPa6wRECw0
I really enjoyed Intel's foray into networking in the late 90s. Their Ethernet hubs and switches were economical and reliable. It really made no sense for them to be in that market, and they ultimately ditched it, but I liked the simple and inexpensive gear.
The first chassis switch I ever used was the XLNT Millennium that Intel acquired and rebranded as the Intel "6000 Series". At a time when gigabit Ethernet was still exotic getting to play with one in a lab was a treat.
Aside: Videos like this leave me with this "Gee, I could've done that" feeling. It would probably be fun to divest myself of the old junk I have sitting around by way or making videos about the stuff before I liquidate it.
Rock-solid drivers - can’t think of a single platform they didn’t run on.
Intel was always looking for new markets to enter. It's definitely not unreasonable to build NICs and things for NICs to talk to.
There's a comical change where Intel downclocked DMA to fix some issue and it makes TSO max out at ~700mbps: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin... but they later disable TSO there with https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/lin...