Utilize the clutch, clutch when you're slowing down or decelerating in low speed

Those 3 common issues also appear in my MT unit,
1. so far my dashboard problem is temporary solved by SC
2. also temporary solved by SC
3. Wind Noise they ordered part, haven't call me for next appointment.

For your questions:
1. You may report this to SC. For my case it was solved by SC by changing switch stop lamp
2. This is pretty personal and depending how many people/weight your car carry... the suspension is on soft setup. It was pretty comfy in my opinion, but going through bumps need to be slower.
3. The gear ratios is shorter from 1-4th gears compared to similar car, you'll find that you will need to downshift from 5th to 4th pretty often due to the huge gap between this 2 gears when you're at cruising speed around 70km/h. However since I'm no racer, I'm kinda like this gear ratio setup as you'll get adequate power to shift from 1-4th gear due to its slightly shorter, ie... some hill that require 3rd gear to climb have no issue with 4th gear on this car.
and the very slightly longer 5th gear ratio for highway drive will bring the RPM similar/very slightly lower than other cars at its class.

When you said wind noise, do you the noise from the B pillar or which wind noise?

My MT did have very obvious throttle lag previously, after changed the brake switch, the respond delay is better than FLX MT

I took it to service and told them about car is under power at low end torque especially from stop and they said it was solved with a new brake switch replacement.

Brake switch is the switch that activate the brake light at rear of the car when you brake, probably this switch also sends signal to ECU for different engine response configurations

I'm not sure how to say it exactly. For example, when you want to accelerate from stand still then change to 2nd gear. When you pressed the gas pedal hard at 2nd gear the car will keep accelerating for like 1s then suddenly you feel like the car losing power for ~1s and then like normal will accelerating forward again. 3rd gear not that obvious, 4th and 5th gear is fine.

However, if you do it slowly then you won't feel anything. Changed gear slowly, release the clutch slowly and accelerate slowly then the drive is smooth.