If you're a habitual shoujo reader, then I would read it. If you're not... I think this is probably too far into the genre to be likable.
The female lead is not that annoying, and though her sixth-sense is a little bit far-fetched, the power lays the foundation of the entire manga, not the romance. Saki, the main character, is not entirely an idiot, and shows compassion and determination at the right spots. She knows when to give up, but also grows as a person, in that she learns that there is a "story behind every lie." I thought that the theme was well-articulated, and even though others insist that it degenerated into shoujo fluff at the end (the 2nd to last page-ish), I think it was a nice thing to tie together the series. The scene after that... well that could have been skipped to save many a stomach.
The male lead, by comparison, appears pretty much one-dimensional for the entirety of the series. But the girl is starved for genuine companionship after the first major plot event, she accepts his... superficialness. He is princely and thus good-looking, ridiculously kind to her, etc. Basically, he fulfills the entire shoujo love interest requirement. Next to perfect, with a supposed "flaw." The drama around his "flaw" was terrible. I'll be blunt about it. Being as the story is predictable, I knew it was going to happen, and I suppose it could have been worse.
That said, combined, I didn't really care much about the female or male lead. They could have ended up together or not, but I really didn't care. Perhaps the story was hard to relate to, but I've read several supernatural mangas where I am capable of connecting with the characters. If I was kind, I would say that the emphasis of the series, despite the over-arcing theme of romance, was on the "lie" thing, which is probably the only great thing about this series.
Her ability does create drama, but it also forces her to learn, and I think this manga does have some character development, at least in the female lead. I really don't think the male lead changes. I believe the author attempted to write off his "development" as the unmasking of his character, but the so-called hidden pasts did little to provide him depth.
Overall, it's not spectacular, but it's not terrible. It's only two volumes too. (There is no way I would read this if it were any longer). The side characters are mildly likable, and I did not find myself wanting to murder any fictional characters (i.e. no annoyingly persistent rivals that shouldn't exist even in shoujo).
Therefore, my recommendation reads: If you have (a lot of) free time and you're a shoujo reader, try it.