I managed to do a physical recon of a couple other places, Falls Overlook Cafe being my favorite. Pros and Cons of multiple places:
Coffee Roasterie (west side)
Pros
Larger interior
Large parking lot (next door at Johnny Carinos)
Location in relation to other businesses (out of towners)
Location in relation to Interstate
Cons
Must coordinate with Johnny Carinos to use their parking lot
Flying J's
Pros
Location to both interstates 90 and 29
Large parking lot
Denny's restaurant on location
Cons
No specialty coffees (if that's your thing)
Lots of traffic (OTR drivers and weekend drivers)
Falls Overlook Cafe
Pros
Decent parking lot
Large interior space
Gorgeous view
Just outside of downtown
Cons
Merrells smell (if strong on that day)
Middle of town (difficult to reach if not a local)
Hours (fall hours are 11-5)
Coffee Roasterie/ Dunn Bros Coffee (east side)
Pros
Parking lot sizes not horrible for small groups
Location for Iowans and Minnesotans not bad
Location to other businesses (out of towners)
Cons
Busy traffic on weekends
Parking lots not massive
I as aiming towards local franchises rather than the typical Starbucks or Carribou. Those are still valid options if we would like to consider them. I would recommend the Carribou at the mall as one. We could also shoot for a Scooters Coffee also, but parking space again will be limited. Let's get a conversation going to try and be able to accommodate everyone. Also timing will be paramount to get a good attendance. I've typically shot for an entire morning when I lived on the East coast that way people can come and go as they please. If more towards the afternoon works better chime in! Also which day of the weekend Saturday's or Sunday's.