Useful but...
My 4TB drive crashed and iBoysoft had helped to recover the data. However, it was painfully slow (to me) and it was not evident how long a particular folder might take for the recovery to take place, so that I can prioritise which folder to recover first, and when to schedule each folder (when I was not using the computer for work). Something close to 100GB could run longer than overnight. On occasion, iBoysoft also quit unexpectedly for unknown reason and I had to restart the process a few times. If the software can also provide a checklist of previously recovered files to enable the user to check-off recovered files that would be good.