I made an exploratory visit to Ruby House in Beverly, since I visit the Cummings Center frequently. It's one of those places built in to an old KFC.
To be honest, I've only gotten lunch special stir fries, but they were plentiful, cheap, and made while I watched -- very fresh tasting. And they are sympathetic when I have to handle my two pre-schoolers, smiling benevolently and bringing out extra napkins without being asked.
Husband and wife run it (he usually cooks) and their school-age daughter takes orders some weekends. Dad's English is OK for ordering, Mom's not really (couldn't understand when I said 'no MSG', and she won't answer the phone when he's not in... this merely increases authenticity to me) Daughter, of course, probably speaks English better than I.
Clean but not terribly attractive, rather 'Chinese in the rough' feel. Maybe some more adventurous eaters can check it out and supplement this post.