there;s a thread further down with lots of negatives.
we;ve just come to the end of a 3yr contract with manpower who provided the service,. in effect we only used it for about 9mths properly. well, not properly, as we couldn't let the computer pick and choose the shifts as it just didn't work. all shifts were inputted manually, then each week we had to go in and update with what was actually worked. checked eveything at end of month and hit send and all were paid. more problems with pay as system wasn;t compatible with the payroll system. usually underpayment, rather than over payment.
we are now back to an excel spreadsheet and written timesheets.
it was all hit and miss and the auto rostering thing was very hit and miss. would put a too junior nurse in charge with no band 6 back up for example. absolute nightmare if you only did specific shifts or had a flexible working agreement - never understood them! the auto rostering also couldn't differentiate betwen shifts so it would put you on a night on a sunday then an early on a monday.
positives - not many, but we had less mistakes in relation to pay. i had a report to track against staff timesheets so able to pick up overpayments alot easier. also easier to track back sickness absence or training etc as it was just a search field. the system also allowed to have staff details, plus training recorded, so i could access this easily if needed "out of office hours"
my advice - don;t change your fixed shifts until this is well bedded in and got some feedback.