As others have correctly pointed out, this website is listed by the IRS as free and it says the word FREE on top of each page. But after you spent all that time entering your data, that's when they surprise you with a significant filing charge!
Additionally, my state return was rejected three times and they charged me to re-submit it! When you message customer service (can't call since there's no phone number), they usually respond with one condescending sentence that doesn't even answer your question, such as, "Please read the screens when you login completely and carefully."
To top it off, they told me I was getting a refund, but when my forms were finally submitted to the state, it magically changed and now I owe money. When I asked why there was such a change, they respond with, "Your return is accurately calculated based on your input and current tax law." And don't even bother to ask this website to refund their charge unless you want more snark responses.
Save yourself the aggravation do not use this site under any circumstances!