You are welcomed. My experience using MBB Amex Credit Card for >2 years:
1) No problem swipe local or overseas at all (Asean & Europe), as long as they accept Amex
2) Sometimes local shops have problem swipe/approval MBB Amex Credit card, but no problem with MBB Visa/Mastercard.
3) No issue with credit limit, as it is more than enough to use.
4) CL is combined with other MBB Visa/Mastercard. MBB Amex Charge Card CL is separate though.
5) Recognition/status/class/etc - I don't care, as long as can swipe and collect MORE points than normal.
6) Benefits - not much. I seldom use for promotion or airport lounge or etc. I don't like to hang around airport for too long. 1-2 hours for shopping/walk around/wash eyes
Coming back to Ikhwan/basic Amex credit card, I read above posting Ikhwan is rebate % ? Do a simple calculation, nowadays MBB TP 8500 = RM50 voucher, which means need to spend 8500/2 = RM4,250 to get RM50 voucher.
If Ikhwan is 2% rebate, spend RM4,250 x 2% = RM85 !!! More worth it.
To make things complicated a bit

, my MBB Petronas is 5x TP, which is 8500/5 = RM1,700 to get RM50 voucher.
If Ikhwan rebate 2% @RM1,700 = RM34 only. Means more worthwhile to use MBB Petronas CC at Petronas station, rather than MBB Amex.
BTW, your signature is Hong Leong Bank CC application ?

Yes, the 2% cash rebate is quite interesting but not all of the purchase we will get 2%, for example Giant VISA, 2% on Giant and others 0.5% only. By the way, AMEX can get 2x on all purchase and it can be accumulate together with other Credit Card/ Savings/ Current Account in M2U (that's i interested). Just want to get the point grow faster, coz MBB Petronas VISA get 1 TP for other purchase outside Petronas, the AMEX will substitude at this part