Has anyone used the Otztal shuttle from Innsbruck airport to Solden?

I’m looking at travelling independently in January and there are only three scheduled bus services during the day - none of which, on the outbound trip, fit very well with the flights.

Any advice, or alternative suggestions for transfer (perhaps by rail?) would be appreciated. None of the tourist office websites etc are particularly helpful. Thank you.

Last March travelled from Munich to Obergurgl   Train via Innsbruch to Otztal Post bus to Obergurgl via Solden . There is a bus from Innsbruck airport to the railway station

Many thanks; have now booked the Otztal shuttle in the hope the flight is on time. I have all the times of buses from the railway station and train times, just in case!