Long term sustainability is going to be challenging. The Lemmy userbase is way smaller than reddit's regardless, and for 3.50 EUR one-off it will be challenging to cover future development efforts.
For me it just have too many bugs that aren't being fixed.
Nothing major, just little annoying things like if you edit a comment it closes out of the thread. Or if you make a comment it scrolls to the top of the thread. Why?
I've just tested it and boost doesn't do either of those things.
Boost is definitely a little better than connect. It also just has a feeling of being a little more solid and I can't even say specifically why. That's worth considering for me
Idk about you, but I paid less than the max it shows for the price in my country on the Play Store. It may be down to localised pricing or maybe I paid during some promotion.