I signed up for GTM at the recommendation of a friend who used the company to process her family's babysitter's payments and taxes and am SO very glad that I did.
Peggy Byrnes, the tax specialist with whom I work, is lovely, smart, funny, knowledgeable, and responsive. Keeping up with the many, many ever-changing requirements of the tax code concerning nanny payments is a full-time job and I am grateful every day that I have delegated this job to Peggy.
Now, if I ever get a notice from a tax department, I always know I can email Peggy the notice and say ""Peggy, am I right that we already paid this and you can just make this notice go away?"" And GTM has always ensured that we did already pay for the item in question and Peggy does always contact the tax department and let them know.
She and GTM are the greatest. So great in fact that I now use GTM for my company's payroll servicing as well.
Pros: reliable, super-responsive, patient, and pros in their field