Welcome to WFRP 4th! Welcome to Ubersreik!
I find this prodct very useful!
First off, it has an introductory adventure spanning 4 “chapters”, pre-generated characters, quick rules, handouts with conditions and other useful things and everything you need in order to play (If you buy the physical product you get dice as well), just to play it as it is will give you approx. 20-30 hours of fun.
In addition it has many adventure seeds after the introductory adventure is completed, some including the pre-gens, some not, which helps you to continue playing on your own adventure if you wish to.
If all of this wasn`t enough, I will almost say the best is still left, "The Guide to Ubersreik". This setting book is 64 pages and contains all you need to know about Ubersreik, it also has about 2 adventure seeds for every location it discusses. If your group is interested in staying in Ubersreik, you could easily write a campaign with the information and seeds given here. The physical box has a nice “dm screen” inside the lid as a bonus!