new job in OB/GYN

I have been an RN for 14 years. The entire time I have worked in ophthalmology, an ambulatory surgical center. I am wanting a new field of practice and have applied for an RN OB/GYN position at our local hospital. I will need training, not as much as a new nurse, but almost. My question, do those of you who work in OB/GYN enjoy your field and is the training such that I would have had to have experience in the hospital to learn this new position? I am a fast learning and would really enjoy the change. Thanks for your comments