Welcome to the soapy side! *waves back*
My very firs soap was a Castile without any fragrance. I quickly got a feel for the process, so two unscented batches later I ventured into a batch of soap with Mango/Mandarin fragrance from Coastal Scents (they stopped selling fragrance oils now).
It went really well, and since then I have only made a few batches without fragrance to gift to a friend with fragrance sensitivities (I cure them separatly and well away from my other soaps with fragrances)
Yes, I have soaped with Bergamott essential oil once, but not since. After three weeks of curing and it was...gone.
It didn`t give me any problems whatsoever, but the smell just disapeared, even though I followed directions to how much to add. I didn`t anchor it though, that may help, but I personally felt it was just a waste of expensive oil.
Bergamott has become really expensive now. So decided to save that for my bathbombs instead. (well, I make them to use as footsoaks as I don`t have a tub. The smell is amayzing and citrusy)
Essential oil combo I
love to use in soaps are
Lemongrass/Lavender. It smells sooo fresh and clean, and sticks well in soap without having to use too much of it. It smells like cutting the grass in a lavender orchard whilst peeling a fresh lemon. Love.it.to.death.
Just be aware that some folks react to some essential oils, so let people know what is in there, just in case. Good luck