I drove back to
KL from Phuket yesterday, and this is what happened/we did.
We had prepared/completed in advance an immigration card for each of the four of us!
On reaching the Immigration kiosk, I handed all four passports (
but no immigration cards) to the lady, with my passport on top of the four and my I had placed my i-KAD on top of
my passport.
The lady searched through my passport, but failed to find my current 5 year Visa, so she handed the passport back to me to find it!!!! How she thought I could have a current i-KAD without a current Visa is beyond me, but then again T.I.M.!!!!
Anyway I found it for her and she then proceed to stamp my passport with an 'entry stamp', and then she did the same with my wife's and two boys!.
No immigration/arrival card requested & none required!!Word of caution:- The Immigration lady was friendly & clearly of Indian origin which is fairly rare in itself. Had I had a had a grumpy Malay person who had perhaps got out of the wrong side of the bed that morning, Immigration cards may have been required

.
You have been warned!Only time will tell. As you you leave/enter the Country, please post your experiences here!!
If my experience proves to be the SOP for anyone (& family) when the main
MM2H member has an i-KAD, then, in my view, having an i-KAD is worth it.
For those of you who travel very frequently....the bad news is that you passport is still unlikely to last until it's natural expiry date!
