I started using Busy a while ago because I could use the slider bar sooner. That alone helped me to jumpstart my results here. Rather than burning through all of it, I was able to spread it around with my comments. I think that helped me engage.
Busy has been glitchier than Steemit, but it seems like they've gotten a few things worked out over the last few weeks. Previously I would attempt comments and Busy wouldn't post them, it would just clear the form. It got so bad that I developed a habit of always copying my comments before hitting "comment." Seems like that's better now though.
I think there are advantages to both Busy and Steemit. I use both for different things.