In my opinion, if logistically possible, it is best to have your first open water experience with a knowledgable, experienced instructor. They are more likely to ensure you get the best experience possible.
In the past many people taught themselves to dive or were taught by their Father, Brother, Sister, Mother, Uncle or friend. In this day and age there are so many chances to experience the first dive with someone who has been trained to accomodate new divers, that it is not worth putting yourself, or the well intentioned albeit "non certified" instructor at risk of a lawsuit or worse if things dont go as planned (however unlikely that may be)...
Full Disclosure: I am a SCUBA Instructor and benifit financially by individuals choosing to use an instructor.
Cheers,
Roger
In the past many people taught themselves to dive or were taught by their Father, Brother, Sister, Mother, Uncle or friend. In this day and age there are so many chances to experience the first dive with someone who has been trained to accomodate new divers, that it is not worth putting yourself, or the well intentioned albeit "non certified" instructor at risk of a lawsuit or worse if things dont go as planned (however unlikely that may be)...
Full Disclosure: I am a SCUBA Instructor and benifit financially by individuals choosing to use an instructor.
Cheers,
Roger