I bought pack one and I think it's a great selection.
Like some people said it's more on the darker sounding side of profiles.
I'll buy pack2 as well.
As for using: yes, of course.
With my main band setting I'm very slow to change profiles though because what I have used for the last 2 years is still great (Morgan AC20).
I'm sure you know Britts Morgan AC20 profiles in pack two are ridiculously nice.