Fan Boost is often pointless anyway. It's more of a marketing trick. Attack Mode is much more effective and would possibly be a better alternative to DRS in other formulas (much more tactical rather than the more artificial DRS).
Personally I really enjoy Formula E. The races are far more exciting than the vast majority of F1 races, there are good drivers and they're driving pretty hard all the time (only saving energy into braking zones but rarely tyres, even in the most extreme race yet). The practice, qualifying and race is all on the same day and the battles at the front could be among any number of different teams and drivers from event to event and even session to session.
The tracks suit the cars perfectly. Hardly go-kart tracks (though the switchbacks at the end in Santiago were rather go-karty), and usually punish drivers if they make a mistake.