Bought in 2018.
Used a good amount in the off-seasons, around 200 hours. Never had any issues with power drop-outs or overheating.
Just cleaned and regreased all the parts. The cassette (Ultegra CS-R8000 11-28) went through an ultrasonic bath.
Some light rusting on the metal hinge parts, nothing to impede the functionality.
$600 picked up (Boston, MA) or will ship at buyer's expense.
Tacx T2805.81 Direct Drive SRAM XD-R Freehub Body pre-2020 - Brand New - $70 SHIPPED
Tacx T2835 Direct Drive Quick Release and Adapter for Thru-Axle Bikes - Brand New - $60 SHIPPED