Well its a whopping 99¢ so if you buy it and don't like it, you're out a buck. There are only a couple of reviews and it looks like people either love it or hate it. Be a sport and spend a buck and let us know how it works.
The clock app I use is Night Stand HD and it was $2.99. The way I look at it, if I spend $1, $2 or even $3 on an app and end up not liking it, then I don't really sweat it. When they get more expensive than that, I really have to ask myself how much I really need it, especially if I am not sure if it suits the application I am looking for.