I'm using the Coles Rewards Mastercard. For me, the big advantages are:
- Earns 2 Flybuys per $1, which is 1 Velocity point per $1
- Low annual fee ($99)
- No foreign currency fees, so it's my primary card while travelling internationally
- Had a big sign-on bonus (100,000) which offset the annual fee for a few years
The big downside is no travel insurance, but I'm getting that from my AmEx anyway. Also, they call me every month to offer me a low-interest payment plan for my balance, even though I'm never interested in that.
Otherwise, it's a great card and it's simple. I'm even comfortable recommending it to friends as they have the option of getting flyer points (tempting) but if they don't get enough for a decent flight they can just get money off groceries instead (practical).