Lots of focus on your secondary team (I attend weekly litigation trainings). There are also helpful one-off or recurring trainings on various more niche areas of law.
informal training is great, i think there could have been some more formal trainings when i first started
I receive formal seminar-style training, but the most effective training is on the job learning systems and skills. The most important skills so far have been learning how to navigate our research systems and locate key information.
Once of the best things about being at a big law firm is the quality and quantity of training you receive.