I've recently been using the Likebook Ares - the latest 7.8-inches note-taking e-reader by Boyue - and my initial impressions are mixed. The software has improved, but there are still bugs and key features that remain unsupported. Also, Boyue's software is still confusing and time-consuming to understand. The main positive, in my view, is screen quality - it is better than the Likebook Mars and the Onyx e-readers I've used. Other positives are software related and mainly include PDF features that Boyue introduced with their latest software update.
A more detailed review will hopefully be posted soon after further using the e-reader.