How are the BD releases of Cobra the Animation & Princess Tutu by Sentai Filmworks?

[Rosenkreutz]

I was curious if anyone was familiar with the overall quality of these two BD releases by Sentai Filmworks. I've heard that most of Sentai's BDs from 2010-2014 weren't very good, but for the most part they started to improve afterwards, these particular BDs were released in 2016 and 2018 respectively.

I haven't been able to find anything regarding "Cobra the Animation," but seeing as the only other option is the DVD that Sentai released at the same time I'm guessing that it's probably safe to assume that the BD is at least a step up from it.

I haven't been able to find out much about Princess Tutu either, though what little I could find was a bit concerning such as these posts on twitter. (1 2)
It sounds like there's some ghosting issues with the BD, but I'm not sure how prevalent it is throughout this release or if it's bad enough that the DVD release by ADV would be considered superior by default.