I have been to
Walmart, and to Sears....
I think it really depends on the individual studio, the phase of the moon, whether the photographer is PMS'ing!!! LOL!!!!
Seriously, I have an OUTSTANDING picture of DS when he was a baby, just from our local WalMart. And, twice at Sear's, I have been VERY unhappy!!! One time, the actual prints were of such crappy quality that I just turned around, went right up to the front desk, showed them to the lady, and made them re-print them!!!! Which meant another trip to the Sears store two weeks later, which is a 45 minute drive. (New prints were a bit better, but still no better than any home camera).
As far as the personal experience with the photographers.... I have felt lack of service and RUDE treatment from Sears. And, one of them, who was mindlessly and with the speed of light going thru her motions, not paying attention to what I, as the customer, was actually wanting from my portraits, got very rude when I tried to interject... and actually said something along the lines of "Well, I have been doing this for years....."
Sear's marches their customers through their cookie cutter 'program'. At least ours does. If you want anything a bit different than the little check-boxes on their selection sheet... forget it.
So, while it may really depend on the individual studio. Count me in with those who are NOT happy with Sear's!