I never tested this site but i am planning to use this as my receiving address in the future..
Do not use this service, its a pure scam. Besides there are many people who got scammed by the service and you can see their complaints if you do a quick search on google.
If you want to get a vanity address, make sure you generate it by your own on your computer. Here is a reliable tutorial on how to make one : https://99bitcoins.com/how-to-get-a-custom-bitcoin-address/
I know this is an older thread but i wanted to point out that the 99bitcoins link takes you to an article that lists the ""bitcoinvanitygen" URL as option #2. So while you say don't do it, the link says it's ok.
To the original poster: I think there's really only two options: 1. Do it yourself or 2. Don't do it.
hope this helps
Have went through with all the reply by various people bro. After this reply bl4nkcode has been confirmed that there is the scam attempt report on the scam and accusation section mate. Better kindly you ignore these kind of website mate.
If you want to check the site whether it is legitimate or not. Use the badbitcoin.org. This will ensure who is the coming to you with scam project or not.