Yes, it's a safe service. It's a mexican wallet which you can buy and sell Bitcoin. However, they are charging higher compare to other Brokers here. Also this service only available in Mexico. You can't avail this service if you're not in Mexico afaik. There's a lot of Brokers out there. You can use 1broker. You can check their ANN section
https://bitcointalk.org/index.php?topic=123492.740. It's also has a copy trade feature. But i don't know if it's good or not. I never tried this or any broker. So be careful. Try it first with small amount. Then, if you think it's safe enough. You can deposit huge amount there.