This might be hard to answer because everyone is different but I thought it might be worth asking.

I'm going to explain how I learn after this but the main thing I'm asking about is Tobira.

I just had a chance to buy Tobira but I passed on it. What I'd like to ask is at the next chance, should I still pick it up?

My learning basically consists of:

Vocab - Core 10k as well as some sentence anki decks and memrise courses. I also pick up vocab when consuming Japanese media which I make sure to add to my studies.

Kanji - I'm learning joyo kanji. I'm pretty satisfied with my learning methods. For a long time i tried so many different ways but my current way is just the way for me.

Grammar - I do so many things for this. I read through Maggie sensei and imabi all the time (not as a strict study thing, just reading up on things I come across or for revision) as well as on here and some other places. Sometimes I read J-J explanations of grammar points and I also have the beginner and intermediate grammar dictionaries . I also have a notebook where each page is titled as a grammar point and I write down sentences I either come across or sentences I've made that have been checked/corrected by a native speaker.

(I've also done Genki 1&2 as well as minna no nihongo 1)

Of course there's things like phrasing and idioms etc

I'm wondering if someone who's completed tobira thinks I'd be missing anything critical that it offeres?

Thanks for your time!