This has been my first motorised two wheeled vehicle, and I've absolutely loved it. Both the convenience and cleanliness of charging (vs having diesel on my hands!), and the fact that I can park pretty much anywhere and often completely free of charge.
I had to do a one day course to unlock this indefinitely on my licence, but if my car licence had of been older - it would have been completely car licence friendly. The 70kmh (40mph) version would have required me to undergo a full licence, or redo a course every 2 years and use L plates front and rear.
It tops out at 28mph on the GPS, but 31mph on the speedo. But then every other car speedo also over-reads - so I cope fine in 30mph traffic along the coast roads. I've no need to use it on quicker roads, and have actually got a very large area I can travel on 30mph roads.
So far, I've done over 1500 miles.
Mods:
Metal luggage hook under the seat (chrome). Looks very nice, but to be honest I've only used it a couple of times. I mostly use the storage under the seat, or worst case scenario - take a backpack.
Shorter mirrors in chrome (SIP). I've preferred these as they're in line with the handlebars and so I can squeeze through smaller spaces. They have rusted a bit after a winter by the sea though, and so I will need to try and polish them back up.
Smaller number plate. In the UK, we have massive rectangular numberplates. I ordered a custom 6 digit plate (rather than 7), and had a company produce me the smallest legal plate I can have (10mm wider than the digits). This gives it more of an Italian look.
Underseat handlebar lock: This came on the bike. Initially I didn't like this one bit (mostly the visual aspect), but the ability to lock the bike without crouching down in the rain to put a disc lock on has been great.
Type 2 Electric charger adaptor - I purchased this without a rain cover (to make it smaller), and with the shortest possible cable length so as it can stay under the seats. In the cities, we have a lot of payable chargers that are wired into lamp posts. This has meant that I don't have to worry about range so much, and can travel longer distances. The rain cover was quite bulky (so would have meant less storage in the bike), and so I've tried to time charges around the weather when using this!
Pros: The power is instant on the Elettrica. I also love the depth of information on the dash and on the app.
The brakes are amazing. I've got the electric motor brake on its highest setting, and combined with the rear cable operated drum brake makes up 90-95% of the braking I do. I only really use the front brake for emergency stops or at traffic lights.
The silence - I thought about getting a helmet with earphones so I could answer calls, listen to music etc but I've loved how connected I am with what's happening around me. I often have chats with people at traffic lights etc. I can also hear when a car is approaching or near me, and so this adds another safety aspect.
Cons: The flip side to the silence is pedestrians who don't hear me! I always assume every single one will step out in front of me and move further out into the road. There is a setting on the handlebars to make a constant beep sound when riding but I haven't wanted to use this.
The cold is probably the only main negative I wish had a remedy. I used the Vespa right down to freezing point over the winter. The battery however will only allow the motor to hit 2500 watts when the temperature is under 10c (50f). Above this, it will happily sit in the 3500-4000 watts range. On the flat, this isn't so bad. But on a couple of hills, this power drop became more of a problem. On one hill near me, the bike would drop down to 29mph in the summer, but wouldn't go past 22mph in the winter. I was never pressured by cars, but I didn't like this.
Sometimes, I would try to charge the battery for a few minutes to get some heat into the battery before I left - but it's definitely aimed for slightly warmer climates. When the temperature is above 10c (50f), it's perfect.

Charging using my Type 2 adaptor

Custom number plate
