The biggest problem, or hurdle, that most people face in deciding whether they should buy a Sybian is not whether it works. That is well established. (And don't forget the generous money-back guarantee that allows you to try it yourself for 45 days to see if you like it.)
No, for most people, the major thing is mental: Is it right or good to do this? Many of us are conditioned to think that having too much pleasure may be wrong, or even a sin.
A Sybian is a machine. Is it wrong to use a machine to bring us pleasure? Only you can decide for yourself, but if you think about it, you probably use many machines daily to help you and make you happy.
The Sybian is essentially a vibrator -- although a very special one. If it is not wrong or sinful to use a vibrator, then the same would go for the Sybian. Just because it is shaped differently, does not mean it is something different. If you think a vibrator is also wrong, then what about leaning against a washing machine or a motorcycle? It is all the same thing, the only difference is in the efficiency and design. They all vibrate.