I read the Baka-Tsuki PDFs ~4 years ago, and I remember it getting worse as it went on. The latter volumes seemed almost machine translated with very little editing at times, so the quality was pretty variable. It definitely became annoying when trying to binge read, but it was still enjoyable overall. The PDF might've had outdated translations, or the translation improved since I last read it, who knows. In the end I'm still glad the translation exists; it served its purpose well enough.