Reviewers who have tested the Thrustmaster T818 Direct Drive wheelbase are mostly unimpressed. The Logitech G Pro Direct Drive wheelbase remains the top choice among the new “mainstream” direct drive units. Some reviewers are comparing the Logitech wheelbase to wheelbases costing more than twice the price, such as the Leo Bodnar Direct Drive wheelbase which retails for $4423 US. The Moza R9 wheelbase is priced just under the T818, yet outperforms it in testing.
Logitech was always the winner with low and mid-range wheels, and now dominates the direct drive wheelbase market.
Here is a good YouTube review of the Thrustmaster T818.