I have the Progressive hardwired unit. I like that it has a display unit, but I wish the wire connection to the display unit were on the backside as opposed to the bottom of a unit that sticks out nearly an inch. I also wish that the Progressive had a wireless monitoring option. I have several Bluetooth-linked devices in my trailer, including my Victron BMV-712 battery monitoring system and my LogicBlue LevelMatePRO electronic level. These are great for monitoring different aspects remotely when setting up. I wish I knew what type of signal was being transmitted over that "phone" line cable... and make it interface with a Raspberry Pi to log details. I know I'm just a nerd, but I think that would be cool to see.
