A few people have been scammed on the site, Only use paypal to pay for items for sale by other members. If they will not use paypal, its likely a scam NEVER SEND E-TRANSFERS OF ANY KIND.
The shape is nice. I would be concerned about the seat height and the riding position. It looks like the riding position may be more forward leaning. To be fair I am very frunk biased I wouldn't trade my current steed in on it but it would be interesting if I was without.