It'll also do cool stuff like keep track of which episodes it has seen (so it won't re-downloaded old eps) and watch for propers. From there (in your torrent client) you can post-download hook to auto-extract your new show and put it in the right folder so Kodi can see it. Kodi does all the Kodi things like keep track of watched episodes, get your artwork/subs/ratings/whatever, keep your library sorted.
It's a bit of a Rube Goldberg machine but: End result is I get home and the GoT episode that dropped an hour ago is sitting there on Kodi, ready to be played. It's so convenient it's ridiculous.
Or, so I've heard.
The other thing is you can define the quality you want to download, it will find the best thing closest to that quality and download it, say it's 480p but you want 1080p, but only 480 is available at the time. An hour later 1080p is published, but you already have 480 and maybe you're watching it, no way for it to know, so what the software does is, download the 1080p version, and don't delete it till it's done downloading. You'll know it's downloading cause you can setup all sorts of alerts and notifications. Then you have Kodi setup to auto parse those directories and fetch previews and descriptions.
At one point I had a plugin for Kodi that takes all the content you have and makes "Channels" from the content, so you can feel like you're watching regular TV and browsing through channels.
People love Kodi for the streaming plugins, but Kodi + Usenet was amazing. Nowadays I just pay for Netflix and Hulu, but like I said, at this rate it's tempting to think about Usenet again.
I can't say I know a ton about the subject, as it's very intentionally not a hobby for me. One might find it important to simply get everything set up and then go on with their lives. About an hour or so googling around and checking the usenet subreddit(s) and the favorite tools and services tend to bubble to the top. Then it's a matter of signing up for a couple indexers and usenet services and blocks, installing the tools, and let it run. The ones I mentioned above are quite stable and self-updating.
Torrents seem to be easier to get started and along with a VPN are probably the way to go if you download something once a month, but annoying in the long term. On the other hand, usenet can be annoying to learn about and get set up at first and then simply stable and easy otherwise.
One could easily get used to the client interfaces and Plex (or Kodi if preferred) and simply forget that they have a system in place to automatically download these series and movies as they're released and as better quality versions are made available.
I'm told these are better than torrent primarily for speed and accessibility. Accessibility is key for older content as these massive data centers that belong to the usenet provider will typically hold all data for at least 7-8 years. So if you are within the 7-8 window you won't have any speed or "seed" issues. The issue now for Usenet seems to be DMCA takedowns which applies to new, popular content. Although, if one were to use software like SickBeard or SABnzbd, I've heard they automate the locating and downloading of recurring/episodic television and would replace NZBGet. You set your preferences for a show (quality, language, etc.) and it does the rest because it knows when the show airs so you literally just find new commercial and add free TV downloaded and ready to go.
Combine this with Plex and you're golden. And that's a $30 one time fee and $15 monthly recurring in total, as the rest is all free software. Unless you want the premium Plex which you would only need if you want to stream from your home to your mobile device or something else while in transit. But if you just want to use this to watch at home, then Plex is also free, fantastic software...or so I've been told.
EDIT:
One additional note on legal protection - using Usenet is preferred as you are communicating directly with your service provider (i.e. newshosting.com) for them serving you files. This means there's no one monitoring the swarm and trying to see if you are seeding or serving/distributing the data. So there isn't going to be anyone serving you violation notices or suing you for illegal distribution. Another benefit is those Usenet providers are typically on major internet backbones and typically max your line speed even for extended usage. You can easily pull down several hundred mbps constant for most Usenet providers.
Don't forget Usenet automation like CouchPotato, now that is convenient ...or so I've heard. You can set it all up to automatically fetch files, and organize them in such a way for Kodi to consume them, and then Kodi gets art for all your shows and movies. There's articles online about it. Downside is Usenet costs a certain amount, course when you start piling on $14.99 for 4k from half a dozen online streaming services, $14.99 once and for all doesn't sound so bad. I don't condone piracy, but I may or may not have done that in my younger years. It was glorious.