We successfully used the Cap One World MC for years with high spend for the 2% back. Never got dinged with other limit fees and kept having to pay throughout the month so that got around the $7,500 limit.
Discovered an easy hack to get the 2% back too whenever we wanted a credit.
TD is more of a pain to deal with. Cap One's web account site is the best by far. Being able to see the pending transactions is something I miss a LOT. Amex site is still in the Stone Age by comparison.