The one thing I've noticed is that when you do try and create the stands to circulate the field (depending on what field you choose) it can be tricky to line it up as close as possible to minimise the gap between the field and stands. It would be good if there were a "guideline" of some sort to just show the angle of the next stand you are going to add just so you can tell if it is going to hit the field or not. Can be a little frustrating when you think you've got the perfect position for the stands to completely circulate the field and it turns out that on the opposite side the stand is touching the field, which means you have to delete and reposition the first stand.
Example: If you were to place Stand 1, the guideline would come off the edge closest to the field and show up about 2 stands ahead, this would then change if you amended the angle of the stand 2, 3 etc. It would just act as a guide so you would know if you were going to hit the field well before.