Like others, I find their system to work reasonably well most of the time. The usability of their portal and their cart experience is mediocre at best, but par for the course from software vendors who don't place any value on interaction design.
However it is their support, or more specifically their LACK of support, that is the issue here. I too had signed up for the premium support package which promised a response within a day. I would regularly have to follow up with them a day later, sometimes more than once just to get a response (which didn't even start to solve my problem).
We ran into a bug in their system which they finally did admit was their problem. Yet the issue went unpatched for months, despite my weekly proddings. Meanwhile we had to make heroic efforts just to make sure this wasn't affecting our donations or causing confusion with our donors.
They charge $30 a piece for their swiper dongles which Square gives out for free (that plug into a tablet allowing mobile payments). I found that about half of these units to be completely defective, or intermittent enough to be worthless.
Finally, several times C&P told us they had fixed an issue, but when we went to test the fix, we found that it either didn't work, or they something else had been broken in the process.
We are now actively seeking an alternative payment processor. Do yourself a favor and seriously consider someone else before you get enmeshed with these guys and the have to incur another search and a high switching cost like we are. read more