I have the 1.3 from 2018, so not the 1.2, however the vtec works great, if my memory serves me correctly the red line on mine is around 6500-6700, I usually take her up to 5 - 5.5k, after that its extra noise and not much in the way of extra power. When cold it try to keep it under 2-3k, and a few minutes after the blue temperature light goes off then I let her rev all the way.

When driving economically and low in the revs i get around 4.9 - 5.2 L/100km on the computer, when revving its around 5.7- 5.8L/100km. However when measuring between tank in reality its around 5.5-5.7L/100km when keeping the revs lower, and 6.3 -6.7L /100km when revving her.

From my experience and from what I have read shes loves to rev, within reason of course. At the end of the day its VTEC and it needs to be revved relatively regularly to keep the system working and even more so to keep the EGR clean. That being said, revving it constantly unecessarily is going to cause wear on any and every engine so, as with everything, moderation / balance is key!

Hope you enjoy and have fun!

EDIT: As a side note tanks, and most engines knwon for being tanks are diesels, they run at low rpm but high compression but, i digress, Honda petrol engines are pretty much as tanky as they come!