Our company went from Blackberry to Win-8 phones. The first batch we got were problematic - many of them would freeze up, requiring one to pull the battery to restart. Mine didn’t but they upgraded me to an HTC which was a POS. No battery to pull to soft reset, so you have to do a hard reset and lose whatever you have on the device.
Then they migrated the whole company to iphones. I despise them. Now they’re telling us they’re contemplating moving to Android phones.
The good news is, there aren't too many additional choices your company hasn't tried. Maybe they'll finally settle on something. :-)