Just watched it and I enjoyed it, kinda reminds me of the earlier years of F1: Tracks with zero run off, non-existant safety, and some slightly dodgy drivers in the line up.
The cars are slow atm but we get to watch the progression of tech on them and I imagine some of them will be quite dramatic.
But the technology isn't open. The FIA are not going to kill the series by allowing 1 team to arrive with a technology that blows everyone away. The problem is, in the few years it will take to get the technology to a point where its interesting to watch, the series could be dead.
I think stretching the current technology at this stage will be it's downfall. Single car 25 minute races with a larger battery would be a better format. Do 2 races too. Trying to make it a sprint race but an endurance race at the same time has ruined it. Which is a shame, it really is.