Thanks for input, TaxCut!
Did you have any quality/reliability issues while using it?
I am fully set up with one client, but I don't think I will be using it. I like the general idea behind their product -- to service exclusively accounting professionals for a reasonable fee which allows for us to offer a payroll service that is actually profitable, not just marginally so, without competing with us by selling retail as well. I have gone through somewhat painful setup process where I had to discover some things on my own despite the training videos and multiple sessions with tech support. I have learned my way around their funky and outdated UI, which is workable once you get used to it. But in the end, I get the feeling it is not reliable enough. Their own user forum is replete with recent complaints about technical glitches, taxes not calculating correctly, late payments, absent tech support, etc.
Some of those issues could be mitigated if the software would provide me with more control. For example, if I could set the date of tax withdrawals, I could set them to a date well before the deadline and then make sure they get paid on time and raise an issue with tech support if they don't (I did not have any issues with reaching tech support). But since they withdraw right by the deadline automatically, it leaves no room for corrective action if something goes wrong.