Wasn't there an anime with similar premise a couple of years back? Or am I misremembering things? I am pretty sure, there was one, which was also focused on maid and "master" with very few other characters, and maid also had some special circumstances, that made her not a very good maid, and "master" was helping her become more "normal", and they were falling in love with each other. Or did I dream that?
Anyway, kind of basic, I think, can already see how it will go. If you enjoy the art and this type of slice-of-life, I guess it will be ok, but I personally will skip this.