Hi ILSAPP
I ran this through EZnec from varying heights of 15 to 60 feet above ground, and generally, below 10 mhz, the antenna pattern is more or less spherical - that is high-angle general coverage skywave. Probably not what you want unless you are only interested in very local contacts within the high-skip angles.
Above 10mhz, it is still an omni, but is broken into very many little lobes. Some *might* be useful, but overall I think you would be disappointed looking for a "good performer".
When I ran it through EZnec, that is assuming a perfectly isolated feedline. If that feedine is not properly choked off, then the common-mode of the coax (outside surface of braid facing the common universe) becomes part of the antenna, and may serve more as a very funky inverted / top-loaded L vertical.
Knowing this, I say put it up and live with it for a week. Then change the pattern by bringing the legs down close to earth, ala a "sloping" version.
Better yet, save time, money, and energy and fire up EZnec. It is so handy to know what you may be getting into before starting a project. The ARRL has a good beginner's book on how to get started, and this would be simple enough to chew on.
Hint: one can quickly emulate the common-mode of a coax shield "third wire" by adding a 3rd wire to your antenna, and can also simulate a choking impedance, like a simple ferrite sleeve choke by putting in say a 3K ohm resistive load up near the feed point on that 3rd wire. Try it with the "3rd wire" (the coax braid) touching the earth, or just 1 inch above the earth to simulate a floating version.
But generally, I think either the project author's needs were met by the normally undesirable pattern, OR the way they got around to feeding it filled in a lot of the strange nulls generated by the antenna elements alone.
