I did Kaplan and it was fine.
Material is much much lighter than CFA material.
There is some seasonality with how they test and seasonality with the material.
Exams are 3x per year I believe and they’ll have materials that are good for 1 year (365 day period)
If you time it right you can buy used stuff on Ebay from people that passed and the material will still be good for the exam you will sit for.
You can also buy old stuff that may mess you up a bit. The old info will have old income tax info, old retirement limits, old estate planning limits in the text so be careful.
The content other than that is usually pretty similar.