I understand you mainly asked the questions to provide feedback, but as a subscriber i can give you some info that might help you decide:
A lot of the sweets are made with cane sugar, which tastes distinctly different from the typical american fare. Beyond that they also have some taste combinations that you usually don't encounter in the us. Savoury snacks with sea weed tastes are pretty nice.
The "what is Japanese candy like" can be answered by going to ITSUGAR and getting some... well... Japanese candy ( https://itsugar.com/crave-japan-blind-box.html )... or Amazon ( https://www.amazon.com/Japanese-assortment-dagashi-TONOSAMA-... - its even prime - I can get it tomorrow!). After I clicked that link, I've got on the order of 50 different Japanese candy boxes showing up in the "related to items you've viewed". So why Candy Japan rather than another one?
I'll point out that the savory snacks and sea weed are part of the "eww" mindset. When the pitch is "we're going to send you a bunch of random candy" I dread the prospect of opening it up and getting a box of sea weed. The repetition of "unique candy" reinforces that "I'm probably going to get sea weed"
While there may be good candy out there, trying to market it needs to take more into consideration that they're selling to an American sweet tooth. The Japan candy consumer who already has a different subscription service or connection needs to be sold on value (better selection, better quality, better price).
As to the sugar source debate... I've got a fondness for some european candies (particularly the Haribo candy berries). Yes, its a corn syrup base, but even the different traditions in making candy for a different pallet will change the flavor profile. Trips to Ieka find a purchase of Jelly Mice. All that matters at the end of the day is the "does it taste good?"
You may be disappointed if you choose the amazon link. I had a hard time finding any candy in that box. It seems to be made up of mostly senbei (rice crackers) and Umaibou (think Cheetos in a stick). The seaweed makes a lot more sense when you realise that it's savoury, not sweet. For some reason, quite a lot of Japanese children do not like sweets. I don't think any of my friends kids like sweets. Korean style flavoured nori seaweed is a really popular snack (especially with really young children -- 1-4 years of age).
But, getting a bit more on topic, that amazon link is "dagashi", which is just inexpensive snack food. It can contain candy (in that box I notice "Milky" which is a hard candy), but things on the same level of potato chips would be in that category. I don't know for sure, but I think CandyJapan sells only candy. The "It'sugar" link seems to be much more similar.
I'm going to guess that his target market is people who have an interested in Japan (possibly through anime) and would like to try an assortment of Japanese candy. I think his home page does a lot better job of explaining the product than the ad did, so possibly it's something to think about in the future.
The Dagashi point is very good. I was a candyjapan subscriber for a while, and their box contents usually felt like they were high quality products, or at least above average. Never "cheap".
I've even used some of them as gifts for other people based on their quality and taste matches.
That is a very good question. I don't know if there are comparison review sites, or how reliable they would be.
> I dread the prospect of opening it up and getting a box of sea weed
It sounds like you're not the type of adventurous person who'd care for this in the first place? Your mind went, in a leap of fear, from "tastes of sea weed" to "box of sea weed", which are wildly different concepts.
> different traditions in making candy for a different pallet will change the flavor profile
I'm a german and i've tasted, well, most german candies. And a bunch of american stuff when i visited (lol candy corn). The cane sugar stuff is wildly different even to my palate.
> It sounds like you're not the type of adventurous person who'd care for this in the first place? Your mind went, in a leap of fear, from "tastes of sea weed" to "box of sea weed", which are wildly different concepts.
Personally, I’ll try things. However, a subscription service isn’t try. You have to be sure you want it to subscribe. Without specics, it’s the random grab bag of clearance items sold for a flat rate.
I’ve had problems with poor quality subscription services in the past. Starts out ok, goes downhill.
This campaign is targeted at people who are familiar with the range of Japanese candies, like anime, and don’t already have a subscription to such. I’m not sure how big that audience is nor am I sure if YouTube videos are the way to reach them reliably (most of the time I’m waiting for the skip advert button to show up).
There isn’t any indication to the type or quality that will be sent. There is no indication that one could indicate flavor preference (I don’t like many chocolate varieties).
> Haribo candy berries). Yes, its a corn syrup base,
Are you sure? As far as I can see, Haribo's European products at least are made with sugar.
The EU sets a maximum production quota on high fructose corn syrup, I doubt there would be enough for Haribo to use it. (300,000 tonnes per year is the quota.)
A lot of the sweets are made with cane sugar, which tastes distinctly different from the typical american fare. Beyond that they also have some taste combinations that you usually don't encounter in the us. Savoury snacks with sea weed tastes are pretty nice.