I'm not even sure what to grade Japan, as my background and my personal problem/experience makes my opinion extremely biased imo (and I think that's the same with a lot of people on here, especially those who are currently living in developed nation with freedom of speech).
I'm going to use LikeTransit_1's measurement.
Country: Japan
Activities (Parks, Nature, etc.): 8-9…I guess? The reason why this is a question mark is because people abroad (especially countries that have huge pollution problems, both developed nation and developing nation, especially places like China/India) emphasize how there are so many beautiful nature and green here, which I never really thought about it (or cared about tbh) lol. Maybe I never thought of it as quite special considering I lived in Canada for couple years and it's definitely far larger in scale (like wild life, Aurora, …etc.). But there are parks and nature where you can enjoy so if you care about those kind of things, than I guess it's cool.
Culture/Herritage: 8-9. Again, I kind of take it for granted considering I grew up with manga/anime/video games/movies/music/…etc. but if you like those kind of things, than you will likely enjoy it (although you don't really have to live here to enjoy any of the things I mentioned above). My impression is that most of the manga/anime thats popular abroad are from Shonen genre (especially from Shonen Jump), but there are FAAAR more diverse genres than that (especially manga). The fan-made/indie industry is also popular so if you want to get out of the mainstream stuff, there's that as well.
Food: 8-9. Again, I take this for granted since I grew up here, so I don't really think it's that special, but food is mostly good, with reasonably cheap Prince (although those are mostly fast food-esque places). There are variety of local Asian cuisine (from Chinese, Korean, Indian, Vietnamese, Thai, and even Middle East) to American/European food, so it's not just "Japanese food". B-tier gourmet is also popular among people from abroad.
One thing I think Japan does have advantage over other countries is that "public water" is drinkable (in the sense that you don't get sick from drinking it), which wasn't the case in developing countries like China/India/…etc. and even countries like Germany (atleast the place where I went to).
People: 2-3…for me. This is the part where I'm probably biased because of all the negative experiences I had in this country, and my mental illness in general as well. I could never get along with anyone and completely abandoned making any friends during high school, and I haven't gotten a single job because I can't get along with anyone (like literally). My family members have criminal records, and went from rich to poor in a matter of year. So does my opinion actually matter? I'm not sure…?
Outside of bullying (which again isn't necessary a "Japanese only trait" imo), I see a lot of people abroad call Japan "xenophobic" (especially Western media lol), but I think it has more to do with 1. Japan being a homogeneous country, 2. Not being able to have a fluent conversation in Japanese. Like I know people that get legitimately scared when a random foreigner asks something in a language that they don't understand, which is relatable and understandable, at least for me.
But with that said, I'm still giving it a 2-3, since my human relationship went downhill to the point where I have been considering CTB for years now.
Politics: 1. Trash, plain and simple. Like NOBODY gives a crap, and I legit believe that everyone gave up, from youth to the old. There is zero hope for anything for the foreseeable future, which just summarizes the despair and disappointment in this country.
Summary:
Nature, Culture, Food are all great, especially if you care about these type of things.
People are hard to judge because it depends on each person's circumstances imo. Personally, due to bullying and my family failing, I don't have a positive view on human beings in general. I see a lot of people from abroad calling Japan "xenophobic" on internet, but I think that has more to do with being scared of speaking in a different language (which is relatable and understandable imo), than just pure racist bigotry (at least the average people, not some ultra nationalist).
Politics is completely trash, and I think the general public in Japan would agree with this. It's just sad and pathetic.