I downloaded it yesterday evening, installing on mine & my wifes machines, and it worked perfectly on each sync'ing to our scheduleworld account. I also set it to sync automatically in the middle of the night & it carried that out without fuss (at least, it didn't wake me & complain!). It does take a time & I assumed it had crashed the first time I tried using it, but just have patience, and it seems to work fine. I've used it about 6 times in the last 24hrs & each has worked perfectly.
I'm not sure where I should leave feedback for the developer etc.. so if someone can point me in the correct direction I'd be pleased.