The low aggregate rating for this app (1.5 stars at the time I write this) is largely the result of a the history of negative reviews that are no longer pertinent. First, Inkscape hasn't needed XQuartz since version 1.0 was released in 2019. My experience is that recent versions aren't especially buggy, slow, or prone to crashing. If you're a user of the commercial alternatives, and can afford them, then you're unlikely to need or want this. I owned them in the past, but can't justify the cost anymore, so I use this. It's free, although you should consider making a donation, and functional. It has a steep learning curve, which might intimidate new users, but that is true of any similar app.