Is a Dogo Argentino a good first dog?

I'm just looking for advice on weather or not Dogo Argentino are good for first time dog owners ? I'm interested in a Dogo Argentino because they are big dogs and from what I've seen they can be good guard dogs which is what I'm looking for. But I've seen a few people say that they are definitely not god for your first dog due to them being to aggressive and some say they are ok but you just have to train them. If you could help me out with advice it is greatly appreciated. Thanks in advance