I appreciate the continuing hard work that the SE team is doing, and I recognize that there are some good features in the new, beta review system, but on balance I don't think it's better. To really do a decent job of reviewing a post, I have to click the link to open the page in a new tab, which means the new system is just one additional step that gets in the way (i.e., $A \rightarrow B \rightarrow C$, instead of $A \rightarrow C$). Several issues seem to be discussed elsewhere, so I won't re-hash them here. These are the points that I think are distinctive:
- mathjax does not seem to be enabled, so it's much harder to read and understand the posts & associated comments
- A bigger issue is that I can't really see the context of whatever I'm supposed to be judging. In terms of keeping the site clean and useable as a long-term repository of knowledge, pages need to be seen as users would see them: whole with the question at the top, all other answers and all the comments displayed. (Yes, I can click the link to open in a new tab, but why do I have to go through an intermediate page that I can't use?) For example, if I'm supposed to judge a low quality post, I can't see the other answers that have previously been offered. A brief answer that doesn't provide much informational context may or may not be useful for someone who comes to that page depending on what else is there, but I don't have access to that without going to the regular page.