First I must say, the new review system is great. It is easier to review items, especially the linked duplicate question tab is very useful.
But I think, the easiness of reviewing posts has posed good possibility of bad review. I have seen some questions (I'm not willing to give a link here) getting closed too quickly and the close reasons aren't very good. (honestly, I consider them bad)
That is why I am posting this meta thread. I hope the situation will be taken into notice.
My advice will be
Please take your time reviewing posts, especially the close voted posts. The votes can be wrong. Please don't give a close vote to a question just because someone started it. The review should be a review by 5 individual users. If I am not sure, I'll be clicking on "Not sure" button.
While reviewing the duplicate question posts, read all the duplicate questions. If possible reading the answer will be very good.