I have been reading/watching reviews all day. Amongst all the negativity there seems to be a common theme.
The game is too focused on PvP - Did you try the PvP? - No, it isn't really my thing.
The game is on rails. There is no exploration incentive. - Did you get into any higher level content? - No, I quit at level 8 because I was disappointed.
It seems pointless to be in a group. Everything dies too fast and there were people taking our kills. - Did you try any of the content that was actually designed for groups like dungeons or world bosses? - No.
These are just a few examples of how silly most of the bad reviews are. The problem is that while the NDA is in place, we are subjected to reviews that try to generalize the entire game based on very limited exposure.
Once the NDA is lifted, there will be hundreds of videos going over everything from taking and defending keeps in Cyrodiil to how rewarding and challenging the dungeons really are. There will be detailed videos on any topic you can possibly imagine.
There will also me much more of an opportunity for quality reviews from people that actually engaged in the content they are attempting to form opinions on.