Yes, I check them when I do the report to insure that by some accident I didn't submit the wrong receipt. (Yes they are client and date coded but accidents happen.) I even got an odd error message the other day when the shop told me the receipt was too big and had not gone through. Yet on the Receipt/CPI page I could see the full and correct receipt in place. It does make sense to do a follow up to make sure shops get approved and to make sure that what was submitted stays submitted.
I always check the Receipt/CPI status within two days of completing a shop to make sure that it has been approved. Some shops stay in a QC status for a few days, so I make sure to follow up until I see that it has been approved or they have flagged it for some issue.