I am using Sonarr for a while now and I really really like it. However I am not using the restrictions options because in my language a popular uploader uses “Series name” (year) which Sonarr can not read correctly. I use Auto-Sub to download the subtitles which for now does its job.
However I am also using Couch Potato for my movie downloads and instead of using a setting that downloads must contain a specific word (or one of multiple words), it uses a preferred word. I am Dutch, so my settings in Couch Potato are Preferred words: “NL”, NLSubs" etc. If it finds a version with this words it will download it, else it will download a version without subs.
I would love to see a feature like this in Sonarr. I looked at github but didnt see this request.