I have been doing a wide variety of shops. Some are very well designed for the app with drop-down menus and short comment requirements. Others are a nightmare to input on a cell phone or tablet.

its always a good idea to review the questionnaires before doing your shops and print them out in the case of a very detailed shop or a busy day of doing shops.

i find the app to be very convenient for checking to see if anything new became available while I'm out, but 90% of the time, I'll enter my shop results using my PC.