Never heard of them, which doesn't mean they are not good. Are you using QB Pro? That seems to be their specialty.
I have heard of Seth David and R/E and QB desktop. You can find him here. I am not affiliated, but he is respected. He has a lot of free content out there.
Gita Faust, is also respected in her field for this type of business. Additionally, many of the CPA's and ProAdvisors out there can help you.