Pros: The controls work perfectly
Cons: The OEM batteries failed, but well after the warranty was up
The Europa is heavy, kind of ponderous looking, and seemed a little under powered to me. But my wife and I have ridden two of them for more years now than I can remember with certainty. They always got us there and back from the top of Seattle's Beacon Hill where we live near Spokane St, to city work shopping and recreation destinations as far away as Ballard. If you are even minimally fit, Europa is adequate for everyday bike transportation.
I love the way the controls work. The Tres Terra Europa is safe to ride. It has a twist grip throttle. There is none of the sudden unintended lurching into traffic of the pedal pressure triggered power systems. You only get power when you twist the grip to dial in the amount you need. The result is you use less power have greater range, and you only get power when you want power, and then only the amount of power you dial in and you can vary that smoothly and continuously as you ride. This system is perfect, and has worked perfectly for years and years.
I have been less thrilled with some of the threaded fasteners mounting the fenders. The metal they thread into is thin and they strip very easily and the threads cannot be replaced with a nut on the back side because the strut into which the fastener threads is hollow but closed on the end . My front fenders are held on securely with some twisted wire now. My wife's have not stripped. My seat post was too short to adjust the seat to my leg length, and a longer one in the right diameter was very hard to find. Both OEM batteries failed, one of them about two or three years after the two year warrantee was up The other OEM battery failed this year. I think we have had the two bikes about 8 years or maybe a little longer. I would love it if they were a little lighter and had a little more power, I am getting old. but no one could ever fault them for their comfort, utility, durability and reliability. No regrets.