We had an issue with a failed 4 disk RAID5 array on a file server that hadn't backed up properly in a good 6 months - we attempted recovery ourselves but found a lot of files were corrupt, and some of the most recent files were missing. We contacted R3 Data Recovery at 8:51 am on the 7th Jan and had a very reasonable quote by 9:19 am - the data was collected later that afternoon and was in their hands and imaging that same day, which isn't bad considering we're a good 300 miles or 6 hours drive away. We received a zip file with some of the most important files by the 10th and had all the files on a hard drive back by first thing Monday 13th. Our drives were really badly damaged, lots of bad sectors, however, R3 Data Recovery were able to restore 98%+ of the files, and have saved us a good few thousand man-hours of work. Well worth what we paid. Would highly recommend, and would use them again without hesitation.