I was watching Cathrin Manning's channel and she mentioned you. Then I was watching Nick Nimmin and he mentioned you. So I checked it out and liked what I saw. Although my channel is just starting out (after a few years of not being given attention because I didn't really understand YouTube), I went immediately to the second level of subscription because I wanted as many tools as possible to get a moving start.
I always start out with Keyword Explorer and try to get a result in the 80s (it helps to be a wordsmith and rearrange keyword phrases until you hit a combination that drives up the result score). Then, I go to SEO Studio and try to get as many of the best practices down as possible until my score is between 95 and 99 (don't hit 99 that often). Finally, I add relevant tags and that usually takes me to 100. I use Canva to create my thumbnails and VEED.IO to create the SRT files for my captions. I absolutely love SEO Studio!
After my video is released, I check for ranking in incognito mode on Chrome for my title and/or keyword phrase. Even though I'm only in this for one month now, I've seen very good results for my video rankings.