Hi Demios,
It IS a tough question/s!
What to expect from the Bedini SSG.... What should be the goal...
The tricky thing is, everyone has their own goal and their own reasons for persueing this technology.
For most, the goal is to further your understanding of how this form of energy behaves and its abilities. It is an experimental platform.
For others, they look primarily to the motor side of the SSG... it IS a highly efficient motor whether you consider it to be over unity or not. It isn't a practical motor, though for some, it may suit a certain purpose. It is a bit optimistic (in fact it is very optimistic) to think this motor can run a vehicle, though it can easily run a fan or even a generator.
Then of course there is the performance of the batteries when charged with this form of energy! I have met several people in the battery industry (mainly working with mobility scooters and golf carts) that have been studying bedini technologies to recondition old batteries and bring them back to life.
That alone is a good reason to research the SSG, though even more appealing is that a new battery charged with the SSG increases in capacity. This won't happen with a single charge but after several cycles the effect starts to appear. For example if you buy a 20ah battery soon it will be a 25ah battery.
So what is the goal? That is up to you. In the end, the Bedini SSG isn't going to light your house or run your car but it is the first step in doing so. It is a simple, easily reproducable generator of radiant energy so that anyone may have access to it to make their own decisions about its performance.