Don't buy this, don't rent it, don't waste your money.
I honestly cannot imagine how anyone could enjoy this movie. Even if you are able to overlook the cinematic carelessness, the acting and the plot are still far too much with which to contend. Although the acting is at points, laughable (particularly "Randy" played by Laurel Hillman), perhaps in reality it is not truly the fault of the actors that the characters are so one-dimensional and fake (actually this is probably the actors' fault), but the script gives them so little to work with that it is at least not surprising. This is just another coming-of-age/coming-out story with no emotional center. The script tries so painfully hard to find one that it grasps at any and every possible stereotype (rich/poor, popular/outcast, straight/gay, family background, friend-base, you name it) that it ultimately creates characters so unfocused and uninteresting that they bare no relation to any real person and the plot finally has nothing left to support it.
The true tragedy of The Incredibly True Adventures of Two Girls in Love is that there is such a void in the genre of lesbian films that audiences are forced to accept trash like this as "film," and even go on to praise it because there is no true paragon of lesbian film against which others may be judged. The result is a comment like "it is one of the best lesbian films I have seen" which, given its company, says very little.
In the end, I believe this film should be judged on its own merits rather than in relation to the relative absence of quality within the genre. However, even given that, I do not think this movie can be considered a "good" film by any standards whatsoever.