HaKeter project it's great too!
As, for the BHQ check out this article(It includes page samples)
The published volumes of the BHQ are already available in two different electronic formats, hopefully BibleWorks will also be able acquire a license to this as well. Not, only is the apparatus much improved, but the full Massorah is included, and a sort commentary on it and the apparatus.
the Author of the Ancient Hebrew Poetry blog, John F. Hobbins, has also published an article on the BHQ in comparison with the other projects out there:
Another very interesting feature of Quinta - that the BHS Apparatus did/does not do - is that the editors of the BHQ give you the reasons why, they believe, the variants arose. In other words, they attempt to explain the reasoning behind them. This makes for a rather nice feature. (I have been working more and more with BHQ, and am, thus, becoming more familiar with it.)
Just in case others might like to know this, the Masorah of BHS/BHQ is a radically different Masorah than was employed by Bomberg/Ben Chayyim. The Masorah of BHQ is based wholly on the Leningrad Codex and was begun by Gerard E. Weil.
Weil was forced in numerous places to insert conjectural emendation because the Masorah of the Leningrad Codex was too slovenly written and too unclear and haphazzard to make a definitive reading. I don't know if the current BHQ Masorah has undergone further emendations, alterations since Weil's time, or what-have-you, only that permission has been granted by the UBS and Pontifical Biblical Institute of Rome to continue the work.
In short, everyone should know that the Masorah is not a monolithic corpus that all agree on. Quite the opposite. The BHQ may be very well organized after making some sense out of much that is difficult to make sense of in the Leningrad Codex, but it represents far and away only one viewpoint.