Most people hate Tango, because of the 25% domestic non-status miles earnings, and only 50% international status miles.

But if you're flying for business out of an employer's wallet, you should be able to argue that T+ fares are more flexible and cheaper to make changes to (eg, job is done, wanna go home a few hours/day earlier).

If you travel on your own dime, and don't value the status miles (or rather, don't think it's worth the extra $$$ to get status) then you'll likely choose Tango.

Sorry mendy, but not everyone on this board can afford the difference in cost to fly T+, especially when you've got mouths to feed and university tuition fees to pay.