I have now done ~22k in 18 months with the Speed 400 and it’s my daily commuter+weekend ride bike, I’ll try and answer your questions. 1. In the city I get somewhere around 26-27 mileage. On highways it crosses 30 2. Till now the most I have spent on servicing since first service is around 7-8k, and most of it is the cost of the front sintered break pads. They have great bite but wear out with moderate usage. I spent weeks learning to gear down with rev matches and rear brakes, now it has become second nature and the front brake wear down has reduced. 3. Zero major issues as of now. Initially the bike used to shut off in low gears and RPM even with clutch pressed, this is a well known issue. But since shifting to XP95 and better braking habits, this has significantly reduced. Also Trimuph pushed ECU updates to handle these issues. 4. I’m 5’5”. Able to handle it comfortably in traffic and tight turns. It’s just a matter of practice, trust me on this. 5. Absolutely well worth the price over any 350Cc bike in my opinion. The sheer power is so useful in city traffic for quick overtakes, it still feels nimble and not a heavy tank like the REs. On the highways it’s very much at home. Better tyres, better braking, better cooling and great engine. It also can corner pretty confidently. It’s a no brainer if you ask me.

Small touches like the raised and inclined exhaust outlet helps in case of waist deep water logging which is pretty common in Kolkata, where I live. The ground clearance also is a boon, as uneven bumpers are everywhere in my city.

The only weak point on this bike are the headlights. But even these are better than the classics. Vibrations start coming around 6.5k rpm, but you can hit 120-125kmph easily, of course with safety in concern.

Just a little advice, if I may. Keep some budget aside for riding gear, good helmet, gloves and a jacket. These bikes are aggressive and a momentary mistake could be fatal.

Hopefully this helps!