From the advantages - an intuitive interface, it is quite easy to navigate in the mining options, as well as you can enter the desired amount of resources that can be bought according to the available cryptocurrency.
It used to be one of the most profitable cloud mining platforms, now things have changed as the cloud currency mining market has fallen off a lot and investments have become unprofitable.
At the moment I don't think Hasflare is a good investment option. Unfortunately, it doesn't have any significant advantages compared to other similar services.