i posted this exact same thread topic last year! i was pregnant and planning my first homebirth and curious about mama's first time experiences. i have a 7 month old son now who is the best thing ever, born at home after what i call 'a full work day' 9am to 5pm. :) It was an amazing experience and i am sooooo glad we did it at home. we had a lot of support on one side of my family, but on the other we had some people who were worried for us. they never said much about it, but they are scientists who believe strongly in western medicine and did want us to 'risk it'. i wonder how they will feel when we have more babies at home!
one thing that comes to mind in my situation regarding birthing at home with your first, when you have no clue how you birth or what birth is even like. midwives are everything. being comfortable with them enough to be totally honest at all times. midway through my birth we realized that DS was posterior (which was a fear i was carrying since i was born posterior and he was sitting that way in utero throughout most of my pregnancy, even after lots of spinning babies!) and since i had talked with my midwife about this fear, when she told me at that moment in labor i wasn't worried. i knew it would be okay, because she made me feel like it would. during labor, using ice on my sacrum, positioning and homeopathics, he turned himself around. it was an intense hour but i worked hard and felt so good when she said he was anterior and getting ready to come. i dilated the last 5 cm after that very quickly and delivered him standing at the edge of my bed. now - in my opinion - i think that had i been in a hospital, there is a good chance that i wouldn't have progressed to 10 cm in time and may have been labeled failure to progress. he was not sitting over my cervix when he was posterior so i was not dilating very efficiently. i don't imagine an OB having the skills to put me in certain positions to turn him around. if i did dilate in time, i would have delivered him sunny side up, which can result in tearing, and more pain.
long story short: i am so glad i birthed at home and feel confident that if my next pregnancy is low risk, i will be doing the same. happy birthing to you!