I am using BSA street rider since 2½ years in Chennai. Its very economical for everyday usage. My office is about 10 km away so my daily usage is 20 km. They claim 70km/charge mileage but in real life you only get about 45 or so. So for me it suffices for 2 days. During weekends me, wife and 2 year old kid can go out, but I only get about 30km (as against 45 mentioned above) due to increased load.
You don't need a drivers license nor does the bike need registration, pretty much like a bicycle. Downside is that max speed is only 25 kmph, although you can have it increased upto 30kmph by the service guy, but at a mileage loss of about 5km.
One important thing is that you need to change the battery every 3 years - this is expected. All the figures I mentioned above are from personal experience but these were in the initial days (<2 years). After crossing 2 years, it has gradually come down and currently I only get about 12-15 km max per charge. I am soon going to move to a place nearer to office (like 4 km or so) so I can continue using it for office commute. Else I need to get a battery replacement immediately.
It's a good idea to have a petrol bike also so that when you have to go to a far away place, you can use it and for regular office use you can use the e-bike to cut costs.
