Welcome here,
1)I guess it is not so difficult to start to use this software, but you need plenty of time to find all usefull function and settings.
2.) You have 2 options: use remote, which show the Wrobot and wow window, but it is not perfect for your problem. The best one is to use this plugin, but it is paid one.
3.) The best is use paid questing profile, better than grinder because you don't spend to much time at the same spot, less chance to be reported by other people.
4) Paid profilles are created by people, who are not associated with Wrobot company, so you have to pay for every additional profilles.