-Small and compact, easily fits into your pocket.
-Bluetooth connectivity, control it with your phone and or other Bluetooth device (raspberry pi)
-Powerfull, it packs a punch and keeps on giving
-Refined, it feels smooth and is very adjustable, you can dial in that perfect feel
-Open about commands, similar to the 2b Developers Forum where you can write your own programs to control the estim box
-Mic activated program
-Motion activated progra
-Motion and mic activated program
-Allow upload of custom programs
-Android and Iphone App
I love the 2b but its too large for public/secret stimming. I'd also love to have a partner wear the estim box that I can control while were out at a bar/club. Force a HFO at the worst possible time

Granted I know this is a really small niche market and its not easy to develop the software and boxes. That would probably be my dream box.