The best part of using blackarch linux in my opinion was that it had all tools needed to perform pentesting tasks, such as nmap & metasploit framework! I did not have any problems while working with this software or its configuration files/commands when performing various attacks like web vulnerability assessment, sql injection etc., It's easy to use by anyone who has basic knowledge about computer networks and hacking techniques used during ethical hacking activities. Also it provides great support from their team members which makes me feel comfortable every time i need help solving some issues related to usage of toolkit. As far as price goes there are free versions available but they lack essential features required for successful exploitation. So if you want something affordable then go ahead otherwise try other options out there before going forward purchasing one because these days most companies provide services at very low cost compared to.