It depends on what purpose you want you ground tying for. To me, my horse is aloud to graze while ground tied. He just isn't aloud to walk around. I want him to relax and know that he can stand and eat a little while. Keeps him occupied and not minding the standing still. I use it a lot and it is convenient to use. But for tacking up I wouldn't want them grazing though, so it depends. =)
I used a lunge line. (This is after you horse knows how to back up when you shake the rope) I would stand in front of him, drop the extra length from above the horses eyes (so they notice I am doing something and to pay attention and he shouldn't follow me) let the lead line have enough slack that it could touch the ground and step back. If he moves forward I take an assertive step forward while shaking the rope, have them back up to the original spot. Then back up again, repeat until horse stands still. Then CALMLY walk to your horse and pat/pet. Wait 20s and repeat. Then when the horse will not move with one step back, take two steps. Then go until you reach the end of the lung line, (never let the lunge line get off the ground in front of the horse) Then if you feel confident start moving side to side, from different angles while asking you horse to stay.