1.5A user here. Since mid 2018. In my opinion, the myvi infotainment is quite trash, some common issues I had with this include:

1. When connected to phone Bluetooth to play song, quite often there will be random skips, like skipping the song few seconds
2. The player doesn't list down song info when playing through phone Bluetooth (actual wtf)
3. Android link only supports up to Android 5 (im not kidding), anything above that, cannot use.
4. When you engage your gear to reverse and the camera pops up, you cant adjust volume up or down while in reverse mode (abit ridiculous cause sometimes you wanna lower the volume to focus better to park)

So yeah I think the infotainment if you want, should be replaced with aftermarket one anyway so there's that.

Not too sure on the tint warranty tho

If term of bang for bucks, its AV without a doubt. The extra features easily worth much more than the additional money you need to top up.

I dun see any reason why ppl who is aiming for 1.5 would prefer to go for H instead of AV, besides money issue. Meaning they cant really afford the additional few k to get AV.

Those that get 1.5H already stretch their budget at the first place

Hence they can't stretch further for 1.5AV

Otherwise i can't think of other reason