I say do it! I had a hard time with it at first just because there are all these tutorials with all these complicated theories on where you should place your tape, which gave me a headache.. I had to just stop looking at the tutorials, figure out where I would be putting the actual lights, and run the tape to those places. It wasn't hard at all.
The tutorials that show you some systematic way to place the wire, I think the idea is that they want to be able to change the lights later without destroying the entire house, and they'll know that the tape is 2 inches above the floor or whatever. But really if you just take some pictures when you have your tape on before you put the wallpaper, you'll know where it is. Or you could even take pieces of paper cut to the size of your walls/floor, label what wall or floor it is, and draw a line where you put your tape.
Or.. you could just have tape running randomly through your house and have no idea where it is.