Omg this is awesome news! I kind of wanted to rewatch FMA but didn't feel like transferring all the episodes to our TV hard drive. I had no idea that subtitles were added to anime. I saw that there were two subtitle options for FMA Brotherhood. Did you try both to see if one may have been easier to read?

Your roommate's suggestion as to why the voice actors are better in Japan makes a lot of sense!

It took me a few episodes to become used to Katara and Zuko's voice and now I can't imagine anyone else as the voice actors. I'm so sad that Netflix took off Avatar the Last Airbender.