I've been trading with this broker for few years now. That's why I may have missed some information about beginner bonuses. So it's better to ask about bonuses from support department on official website. By the way, they answer very quickly. So you'll get answer right away.
As for broker's advantages, you can also ask about them. But in my opinion, they are obvious. Just look at trading conditions, which are listed on website and immediately understand everything. Another great plus would be trading platform. It works great and has mobile version. So you can trade not only from your computer or laptop.
In general, look for information on company website.

You can actually get more information from the support. But as far as I know, there is usually a bonus for the first deposit and also for a referral.