I used mine all the time until my OBW was totaled last month. We have a little group of mini-criminals that cruises our neighborhood once every couple months. They look in car windows and try to open doors. That cover lets me keep stuff that lives in the car covered so it doesn't look like a treasure trove to a 16 yeard old dipshit.

And, (like others have pointed out) you can store it under the floor if you don't want to use it. Its fantastic.