I will agree that this is not the best movie ever made. However, for those who were in high school and their early 20's through the 1980's, this is a classic movie.
There was a number of movies that were centered around robots in the 80's - Runaway, Short Circuit, etc. This was yet another movie exploring the world of robots. Unlike Short Circuit, BB is definitely no Johnny Five.
I agree with the others who have mentioned about Kristy Swanson. I forgot how good looking she really was (I think she still looks pretty good these days). The acting is not as horrible as some would say. The woman who played Elvira (also seen in Throw Mama From the Train)was absolutely classic in this movie.
So, don't expect a great movie. However, it is a good movie to remember the 80's....