I purchased a year old model from an angler in Austin, he was moving to the Ultrex.
Before I got the Ulterra I was running a very old Motorguide.
To me the Ulterra is super for the self deployment, and any day like today with the wind, the spot lock is awesome. That and if you have to retie a line it is so nice knowing you can set the spot lock and not worry about your boat drifting into rocks.
To me the things I don't like are the remote, its heavy and bulky. But it does work great. If I could figure out how to strap it to my arm or something other then hanging around my neck, I would like it better.
The front transducer being mounted to the trolling motor and running the cable is a pia.
And lastly, if you lose battery power, the manual stow can be somewhat of a chore.
The biggest issue I have read about on various forums is the belt breaking, mostly with the head not supported, and running across rough water.
Ram makes a claw style mount that will help with that issue.
Unfortunately for my I did not have one and broke the belt.
The folks at Tightlines Tackle did a good job of getting me back on the water.
When I was picking my boat up, they showed me a Ulterra that the customer had for two weeks, left his wife in the boat, with the remote, while he parked the truck.
Somehow she hit full power 10, and ran into the dock.
Broke the shaft and belt.
MK said no on the warranty, poor guy.
Living the American Dream in central Texas !