I'll be skiing solo on either Friday or Saturday, and being the considerate husband and father I am

, when I go off and leave the family flat to ski by myself

I'd like to not force the wife and kids to get out of bed at 7 am so they can drive me to the mountain. So I was looking at the free shuttle services around town and to the mountain as a means to get to the hill. We'll be at the Marriott. Looks like if I catch a 6:30am shuttle at the hotel I'd make the connection at the Olympic center and arrive at the mountain around 7:35. Enough time for a quick breakfast, get the boots on and catch first Gondola.
Anyone ever use the shuttles? Are they fairly reliable? Stick close to the published schedules?