Happy with Intuit GoPayment. Easy swiping, though sometimes the swiper doesn't load properly on the iPhone, but the scanning of the credit card is a cool feature. If you key enter in a credit card it charges you more in fees compared to swiping/scanning one. Takes about 2 days to get the money transferred to our bank account. They end at 3pm PST everyday for transactions, so if you get paid after 3pm on a Thursday, your not getting money transferred into the bank until Monday morning.
We've had a few lost swipers to, they make it easy to re order these right from the app, pretty decent service.