i think it's really cool in theory, but only the anonymous ones. i don't use crypto personally, but it's important that something like it exists.
cryptobros and capitalism have ruined what little reputation the name had, and it's obviously not going to replace "normal" money any time soon.
i feel like it's kind of similar to the cashless systems that most banks use, but you're trading lots of electricity for "not having the economy be owned by a couple of massive corporations". obviously it has it's flaws, but i see that as a worthwhile trade.
edit: oh yeah, i didn't mention it, but this is another vote for monero (it's private and it's an esperanto word :P)