Sounds like it was pretty good overall. I'm glad to hear you had a good time. <3 It sounds like people are so friendly and helpful... That's so nice to hear.

I understand what you mean about finding metro systems fascinating. I'm the same way, since we don't have them here either. Only been on metro/train a couple of times in my life, and that was on another continent, so it just seems very exotic.

Glad that you mentioned the difficulties of getting places on foot (due to hills + signage); I'll have to keep that in mind if I ever go.