Hi Tim,
Congratulations on your launch. I checked out your site and did some reading - nice to run into a fellow Deloitte alum. I worked in their Private Client Tax division. So hopefully I can share the perspective both as a preparer and reluctant payer.
I like the concept, but I'm just a skeptic who's cynical about all of the on-demand, Uber-for startups. With that being said, it's obviously being done and at least capital is flowing to them for now.
Perhaps I'm old-fashioned, but I either want 100% control (prepare my own taxes) or I need to completely trust the preparer. I need to meet this individual and know he/she is qualified; I have to know who physically receives my docs, completes the return, and sends it out. Taxes are just about the most stressful topic for people and nobody wants to even think about the risk of facing the IRS. So I imagine the assurance of the face-to-face relationship (at least on the onset) with a preparer outweighs the inconvenience of simply hopping in the car to drive to H&R Block. Because apples to apples, it's the same amount of effort otherwise: receive forms, scan/e-mail/deliver documents, sign off and send.
That's just my opinion.
Obviously, online financial services is a hugely successful industry. However, I think of the contrast with a company like Betterment, for example. It's easy to automate the number-crunching from a customer investment questionnaire, and prepare a cookie-cutter asset allocation and investment plan. But taxes are even more specific to each individual's finances; then it's made much more complex by the deadlines, laws, IRS.
I'm also curious: who is your target market? I'm just trying to gauge the effectiveness of the pitch (i.e. save $100, convenience).
I hope you enjoyed my rambling - I promise you I'm offering my opinion as a potential user or preparer, versus any kind of expert. Grain of salt :)