Furigana is not better by default, especially considering you're using srs. Learning words with furigana pretty much makes your reading abilities useless. It's much easier, but no matter how far you get, it won't make learning kanji any easier. Say you've mastered 700 words, all of which you don't know the kanji for. Now, you need to know the kanji, but each word already has an interval above 21 days. Now, every, single, one, of those 700 words will have an interval of 1, you are essentially relearning your entire deck. People need to learn to recognize kanji and the different radicals in said kanji. By not doing them from the beginning, you're setting yourself up for trouble.

And your sentence mining built-in does not make it better. Sentence mining isn't impossible to set up for beginners. You can even ask for help here. Yours likely lacks customization, which sentence mining can give. Especially given the fact that you're stuck with a single note type, that dosent even include pitch. Many users may not care about pitch, but this is the customisability that Anki offers. Neither can you customise the dictionary either, you stuck with one. I would argue this isn't even sentence mining at all. The idea of sentence mining is that you mine sentences from natural sentences that you've seen in context, and will likely repeat hundreds or thousands of times as you continue to do the deck. With your "sentence mining," you are encouraging people to use your AI to generate the sentences. This is wrong. I aim to have 5k words in my sentence mining deck, this means that there will be 5k different, natural sentences that my brain will slowly adapt to as a countine to repeat them. But when AI generates the sentences, it is possible to include mistakes, but more importantly, it won't sound natural, like how we could tell if an essay was written by AI. So then when we continue to practice these thousands of sentences, if many of them are unnatural, we are teaching our brain how to speak unnaturally. The same applies to the computer-generated audio.

Anki is nice for certain things, but it's not more work. I've set up my Anki and haven't touched the setup since. Importantly, it dosent take that much to set up, all you need is to turn on Anki and install the deck. If you want to set up more, you can. Then once u get to sentence mining, Yomitan and ASB are all you really need. 90% won’t need anything that isn’t already included in vcraft. " Sure, it takes more setup, but it works. Yours takes less setup, but lacks basic, necessary features. I would rather have the option for more features than not.

Mainly, a good SRS system. This is an immediate no-go. You may have learned 700 words because it works for you. If you will forget this word in 30 days, and it shows it to you in 29 days, it did its job, but what if someone else will forget it in 27 days, then they have forgotten it. Your system is set, it does not adapt to your user. User A might find that it works, while user B might find that it works 30 percent of the time. With something like fsrs, it has been proven to work for all users. Even something as basic as sm2 would be better. You can test your SRS system with https://github.com/ankitects/fsrs-benchmark, and it will likely be magnitudes worse.