I bought the pack this afternoon and after installig the pack, the cabs where indeed installed in the cab preset section which makes it easy to go through them.
How do they sound? Wel, they sound really good! I play mostly through commercial profiles and my Top Jimi Marshall Super Lead 74 for instance, was already great, but sounds significally better with Cab016. After playin with existing profiles, I bought the Diezel VH4 DI pack from DI Studio this afternoon: These are profiles without Cabs. They sound fantastic with the Cablab!
Because DI profiles are easy to make, I expect to see a lot of them in the future. So I need good cabs and that is exactly what the Cablab offers.