Feel free to ask as many questions as you want, happy to answer them.
That was definitely a dream trip.
Also, it must be nice to be able to stay that long at each location. Over here, taking more than two weeks (10 working days) off of work is frown upon...
I generally save up my vacation hours and take one big one at a time. Also helps that I work my butt off the rest of the year, so no one gets too upset if I take 3 weeks off (which is actually probably the max length at for my job before people will start grumbling about it).
Anyway, one last question, if you don't mind: between Vietnam and Cambodia, which one would you visit again, if you could only pick one?
Seriously, Siem Reap was probably the best (and most exotic) experience I've had in my life. It's something I'll never forget, the town itself and also the ruins of Angkor.
Hands down, I would pick visiting Vietnam again. I felt like there was more to see, more to do, and more to eat in Vietnam. I visited Siem Reap for a couple of days, and even though it was really cool to see all the temples, and just to see how a culture lives, I just wasn't enamored with the country. Maybe it was because I was really just running around all day looking at temples, which by the 6th one of the day, starts blending together. One huge part of travel for me is food, and to me, Cambodian food just didn't have the breadth and of interestingness as Vietnamese food.
It's hard to describe, but IMO, as far as "exoticness" goes, I would guess Cambodia is probably going to be a bigger contrast to Europe, and part of it is that it really is still a third world country. Saigon itself feels a lot like other major city in the developing world, being surrounded by buildings, people, traffic, pollution, etc. That itself shouldn't detract from Vietnam, because really, Vietnam is a fabulous country.
I rode a small motorcycle around town in one of the cities I was visiting in Vietnam, going to shops and restaurants, as well as going out to the spectacular countryside. I think that was a huge part in me falling in love with that country. I don't have plans to go back to Cambodia again, but spending more time in Vietnam, and riding through the country, is now one of my bucket list travel items.