Setup going from 40 to 10 minutes is a big jump, but the organizer is only part of it. The real time sink in Gloomhaven is the monster admin, setting up the map tiles and doors and tracking all the HP and conditions. A good insert helps with storage, but it won't cut your setup by 30 minutes on its own. If your group is playing twice as often now, that's great, but I'd bet the insert just made you actually want to pull it off the shelf.

Most people probably poke it once, see it's not a screen, and walk off lol. There's a hand cranked nickelodeon at a place near me and I spent like 20 minutes feeding it coins. Old machines just hit different when you can actually touch them and hear them work. That adding machine sounds way cooler than any app on my phone.