I never shot it, but as a former 1-Hour mini-lab tech I can tell you what APS was to us: a new film format that required us to buy about $8K in new equipment for a format that at its peak only accounted for 5% of our business, it required new training, the film tore easily requiring re-cutting the unique patterns required for it to go back into the canister where it was always stored, and we generally detested it because we had to change over the machines to handle it thus bringing 35mm printing to a halt. APS was a lot like 110 format in that we rarely got any, but would always complain when we did.
Having said that it was really just the forerunner to digital in my opinion, it would have lasted longer if digital had not advanced so rapidly. The film had flaws, but the cameras that used the film were generally smaller and sexier than their 35mm counterparts. Unfortunately thanks to digital it became another short lived format like the disc camera.