I travel on business around 10 times a year and I've used Winner the last 4 times with good results, so far. Check in is pretty quick, their drivers mostly courteous, car was fine when I got back. Suggestion: if you plan on traveling during peak times of the day arrive 15 to 20 minutes before you have to be at PHL. My first time, I got there late (around 6AM) and had to wait a bit for a little longer check in. Also, they offer an option for you to leave right from the airport in your car for about $10 more.