A tip if you want easy subs is to use Kodi. It has plug-ins for subtitle downloads so you just start playing the movie and go into a list of subs it found from subscene, opensubtitles or similar. Couldn't be easier.
The thing is I didn't have a lot of trouble manually finding the right subtitles in any popular website, it would be different (i.e. not Kodi's fault) if the data was wrong or difficult to find on the first place.
I'll give this a try and see if it performs better.
I will compile a list later of media players that has this feature and put it on SubSync github so it can help people out as much as possible.