Just a heads up that it took us several hours to get installed and the safety check. 😕 There was 2.5 hours of waiting and 25 minutes of installation. We started out at SW Washingon Medical Center. Registration first, then an hour class from 9a-10a, then we were in the group that was suppose to come back at noon for installation. So we left at the start of class (because they don't tell you what time you'll be installed until class starts) and drive to Beaverton thinking theirs was faster. We got in line at 9:40, and were the last ones taken. We weren't done until noon. So beware if you want the safety check to get there very early or plan on half a day to get it done.