I have used TT since 2013 and it is straight forward and easy to use.
The issue I had this year: I need to update my direct deposite banking information and it was not a straight forward process. I searched online and while the solution(s) directed that I would be able to change it during the filing process, it neglicted to mention after the payment had been processed. Even the "in app help" wasn't very clear on the process. Eveytime I choose "Continue" I was keeping my fingers crossed :-) A clearer steps by step updated process (Help section) would go a long way to releive the tension.