Hey catsbananas hope your are good
I have had many many orders from diuk and I can honestly say the vac thing has only ever messed up 1 strain for me as it was flat...this could also have been during postage so it may not even be the vac pack that did it.
Even the ones that have been tightly vacuumed still smoke like normal and once its been ground up you couldn't tell the difference.
Depending on what your preference is to sativa or indica I'd recommend either the sour sop (indica) or the candyland cookies (sativa)...both of them are in my regular rotation and they are both great strains :)
Enjoy whatever you try and don't let the packing worry you too much dude :)