Vantaggi
Thoughtworks is still a good place to start as a graduate, even if the TW university experience was also replaced by a painful remote course. Also, you might get a lot of visibility if you like to give talks and promote passionately any tech topic, as the company is hungry to have any new ways to differentiate from the competitors.
Svantaggi
After going public, Thoughtworks it's just another consultancy company, really far away from the premium partner once it was. The limits of not working with customers related to gambling or countries that doesn't respect human rights are fading really fast, and day by day, the employees are becoming more like numbers to rent no matter what, so the company earnings increases as much as possible. Maybe a more relaxed company than other consultancies, but also paying way below the market. The founder's idea of the company it's now just a facade while most of the talent is moving on because of the low salaries, weird behaviours agains what we are supposed to represent, layoffs and organisational changes.