It was a bit hit and miss for us. No jealousy, but it was hard to find couples we were both into. Sometimes it was really fun, but other times someone was taking one for the team.
I personally think all couples should try it. At least then you'll know if it's for you.
Good question! I remember it being alright. I'd already had the talk with my parents so there wasn't much new to me, but they covered all the major bases.
One thing they didn't emphasise was the pleasure aspect of sex. Just that it was what people did and how babies happened.
They're not too worried about condoms or a bit of cum getting near their pussy. Much more relaxed in that regard. I play it pretty safe, but younger women are more scared of consequences.
It's going to be less satisfying initially, but these other options rewire your brain to open up new pleasure centres. You need to stop your standard practice for a bit and only use an alternative.
Thongs for women. I'm in boxers at the moment