The above poster seems to have missed all the male persocoms in the series; the story focused on the female ones, but male ones are present as bg characters whenever there's big crowds, and also mentioned by characters (Yumi's sister has a male humanoid persocom, for example). Also, if you just hate robots (you see them below rocks), why bother reading romance about them?
On another note, finished reading this series. Was pretty good overall, even if not a masterpiece. Glad I took the time to read it, been wanting to either read it or watch the anime one day for about 20 years.