Truthfully, it wasn't that big a job - 3 hours maybe. We have just over 40 printers, and I think the data entry is pretty evenly split between consumables, models and printers. We already had everything in spreadsheets, so it really was just data entry.
We're hoping for some of the enhancements that have been mentioned - more flexible alert thresholds, some way of accounting for stock levels of different manuf. variations on a consumable - but those would just be icing. The application as it is now will be very helpful.