On rides: always carry a full complement of tools and plan an extra hour in case you have any drive train or rear wheel problems.
In case of said problems, tools or no, people who are not competent with basic mechanical technology should always carry a cell phone, GPS, flare gun, parachute, and syringe full of adrenalin.
Oiling is easy and can be done through the back hatch at the rear cog or at the front by the crank arm door.
For any of these tasks, a (two-legged) center stand or a swing-down rear stand is a godsend.
If you figure out how to manage the chain should you have to disconnect it, please let me know. This is absolutely required if you have to remove the rear wheel, and I have spent many otherwise fulfilling hours of my life trying to reconnect a chain in this case.
Having a bike like this is a joy until something goes really wrong. It helps you build problem solving skills and leg-bones-connected-to-the-knee-bone kind of thinking. And you learn to patch tubes without removing the wheel.
Post pics of your bike!!