Hi,
I finished installation of the EZ steering kit into my '82 BJ42 24V diesel EUR version about two weeks ago.
After (only a few) kilometers, first impression is very positive. Just returned from a test ride after installing a smaller steering wheel. It's an old MOMO D=36cm, which caused me some difficulties to purchase the right hub.
Especially with the small steering, characteristic of the whole car has changed very much, drives like a go-kart now - at least when I forget about the low HP

Install is easy, Kit is certified by TUEV, which is very important here in Germany if you want your car to be street-legal (nearly everything you bolt into your car needs to be approved and certified).
In case the EPS fails, steering behaves as before install. Electric support is only active and noticeable when force is needed, Steering returns to zero-position like before. Other than for modern cars, support is not speed dependent, but it's adjustable between 'nothing' and 'more than enough'.
So far I can see nearly no negative aspects, only (perhaps) negative point - the maximum power is limited. Enough for street and/or trailer use, even with a small steering wheel, but by far not as powerful as the J4 hydraulic system. It uses a 40Amp fuse, I measured a max draw of 35Amp@12V.
Unfortunately there is no real 24V version available, a 24/12V converter is required, or has to be be connected to left battery plus a balancer (like I did).
Let me know if you have further questions - or wait for crazygeeks report...
Peter