An update after 2250 Km and 55 days of ownership.
The bike, how it is now:
1. Engine seems to have opened up a little. The exhaust is perceptibly louder. Vibrations are felt at handle grips and foot pegs after the RPM crosses 5000 mark. The torque peaks at this point too, don't know if that has anything to do with those perceptible vibrations.
2.Gearbox, has its own character. I neither like it nor dislike it. Slotting from first to second or reverse happens with a loud 'clunk' noise and sudden change in power and torque. First gear is too short and quite torquey. Second gear onwards, it becomes progressively smoother as I upshift. 4th - 5th is just a touch shift , I mean I don't need to exert much pressure on shift lever as I do to shift in other gears. To summerize, they should have had a gear between 1st and 2nd ratios.
3.One note about the exhaust, just even after a 30 min ride in city traffic, the heat from exhaust on the right side of the engine starts baking the calf muscles on right leg. The air scoops doesn't seem to be doing much work at slow speeds. However the plastic gaurd on the muffler is doing its job very well. Doesn't ever get hot, just warm.
4.Suspension. One word - awesome. Good roads, bad roads or no roads the bike inspires the same amount of confidence and driveability, thanks to excellent suspension and steering geometry. One thing that left me wondering is, I can't find any gas reservoir on rear mono shock though Hero moto claims it is nitrox filled!
5. The front fender does cast its shadow in the path of high beam but only till a feet or two ahead. In low beam it is non existent.
6. There has been some noise from front fork/steering assembly whenever tyre goes over a sharp bump or into a pot hole. I noticed it after the first 100 Kms. Service guys shrugged it off as common thing with all the bikes. I am not yet able to find the exact cause, but I strongly believe it is not normal.Have read that this noise appeared on other Impulses also.
7.Tyres- They are no dirt specialists but held up very nicely on tarmac and unpaved roads. Skids in the case of loose gravel/sand on tar.
Things this bike did to me:
1. I learned to change the oil myself. Pretty simple, but never did before. Bought socket wrench kit too.
2. I learned to adjust chain tension and axle alignment. I learned to clean and lube the chain too.
3. I learned to do wheel truing my self. I had to search a lot for the right spanner size for that.
4. I learned a bit about cutting and doing vinyl stickering.
5. I learned to stop the bike using only the front brake, many thanks to Aditya.
6. I designed and got a bike lift fabricated.( more on this later )
7. First time in my life, I rode nonstop 200Km on a bike.
8. First time in my life, I saw a 3 digit speedo figure on a bike.( I was a very conservative rider earlier. I am spoiled now

)
Things yet to learn:
1. To repair punctured tube while its on the bike.
2. To install a new tube after taking tyre off the bike.
3. To clean the centrifuge oil filter.
Have been using Shell Advanced 4T Ultra FS, since 1500 Km on Odo.