You're opening a can of worms!
1. I wish scheduled shops could be scheduled like anything else. If you want to reschedule, you can see if it is available or not. Every industry utilizes this except MSing.
2. (this has been repeated over and over) Reports that make sense! Redundant and ridiculous! I note the time about 6 times on one report.....uhh because the client can't tell what time the shop starts? Oh and pics are time/date/geotagged. I guess I wasn't there but I have to put it on 6 times in the report! Wait...my receipt isn't enough either......
3. I wish guidelines were clear and reduced to 1-2 pages. Sometimes it takes me longer to read the guidelines than do the shop!
4. Text Reminders - it would be nice to have text reminders for shops.
5. Map view - if all MSCs utilizied Sassie.....
6. Once a shop is assigned, you can add it to your calender on your account or personal calendar (on your phone, email calendar)
I have a hundred more but I'll stop here.