MRTV‘s review is to be found here:
On the squarish design of the lenses - one advantage this offers is the higher potential use ratio of the displays (versus the lost part hidden as invisible edges). However, that gain probably is countered by the loss the one display approach brings with it - the IPD dialer will need some room to work with, so we wont utilize the panels as good as it would be in a setup with two separate, mobile screens.