Drupal 8 is going to be huge. Although, I'm doing Angular + Node now, I'm very excited and anticipating using it in conjunction with React, Angular, Node, and Solr.
Have these issues been resolved in later versions? Because there was a lot about Drupal that I did like.
Massive modernization. Most high-level concepts remain the same. The implementation became much better. And it's a joy instead of a pain to extend/customize.
I recommend you to take a look :) See https://www.drupal.org/drupal-8.0 — RC1 was tagged _yesterday_.
It sounds like you will particularly like the Configuration System. See https://www.chapterthree.com/blog/principles-configuration-m...