*There is extra time involved. It isn’t 1 minute then forget about it is it?
No there isn't extra time involved once the account is opened. Opening the account takes me about five minutes. Even if it takes 10 minutes it is still worth the few hundred pounds I save. You would have to be a high earner for it not to be worth while!
Another bill to pay every month
It's paid by direct debit every month. You can set it to clear the balance so no time.
Swapping cards when terms end and researching again
I don't think the cashback has ever ended on any of the cards I have used. The research usually just involved looking on moneysaving expert or similar so takes a couple of minute AT MOST.
Staying within rules/terms to get the rewards (ie shopping in the place you get rewards eg M&S)
You don't usually have to stick within certain rule to get rewards. You get them just by using your card. Whilst you may get more rewards by shopping in the M&S, John Lewis etc but they still give you rewards if you shop elsewhere.
Absolutely ensuring your income can cover the repayments
That applies to spending full stop doesn't it?! At least with a credit car you get the bill in one go with the date the money is going to come out. If it is more than is my current account that month I transfer from my savings. If anything it makes it easier.
Someone compared it to surveys. I have a FT job and 2 kids and I tried this once it was a nightmare. It’s so time consuming and really hard work to get any decent rewards, especially when there were time limits. Just accept it’s ok to not want to do it
It is nothing like doing surveys! I tried that once too and had to do loads to make about 8 pounds so really not worth the time. A credit care takes about 10 minutes and saves me a few hundred a year.