There are so many things that I like from living in Japan, it's hard to name all of them.
Food.
I love Japanese food. Back in Holland food was just food, and you needed to eat otherwise you would die. But here in Japan it is more than just food, it's a pleasure. I love having Okonomiyaki on my Friday evening after work together with a beer, temaki sushi together with friends, etc.
Safety
I feel safe in Japan, I can walk on the street without any problems. If I leave my wallet on the train there is a 99(.9)% change to get it back.
Transportation
The railroad system is just perfect here, especially the Hankyu line. Except for one time, I have never been late for work the train.
24/7
Although my family think it's ridiculous, I think it's a great thing to be able to come home after work in the evening and still be able to do your shopping. The other day as well, I needed to go somewhere during the night, and I could buy some bread in the convenience store at 3 AM.
(I can't say the 24/7 thing about post offices and banks though... I have to take a half day off when I have business to do at the bank or post office...
)
Vending machines..
When I am thirsty I can buy a drink everywhere at any time... Problems is, I became addicted to vending machines and spend about 20.000 yen per year drinking bottles, and it's not really eco friendly.
Architecture
Just walking trough Nara, or Ako and see the old style Japanese houses and walls is a pleasure.
Onsen
I really started to enjoy going to Onsen, I can really relax over there.
Clean streets
I always have to laugh when Japanese people say their streets are dirty, because I think it is 100x cleaner than my hometown Amsterdam.
Customer service
When I am spending my money on something, it's nice to get a smile from the clerk (even though you know it's a fake one most of the times). Back in Holland (I try to be not too negative about my country) clerks would talk to you with their backs, and show their moody face, etc....
Their are many other things that I like, and also thinks that I really dislike, but this is not the thread to talk about that.