90% of TT users have NOT have gone through a review. What is your source for that? TT files millions of returns every year. My own Federal refund was received in 10 calendar days.
Neither the IRS nor the state informs TT of any activity once your tax filings have been received by them. For 2018, you can change your withholding, so that you do not have to wait for a refund at tax time.
