The COD DLC is a bit pants, the maps are tiny, which turns it into a twitch game rather than a tactical game, I only find it remotely playable if your favourite fun sucker (friendly fire) is turned on, otherwise it becomes even more ridiculous.
Out of the new game modes only Gun Master is any good, the mini conquest mode is horrible and i'd actually rather just play team deathmatch.
Due to the fact that's it's not cross compatible with the core game it's really a load of bollocks. If you could play Gun Master on core maps, or a condensed version of Rush on the new maps it'd be a lot better. The way it stands though with a 16 player cap on the COD DLC you either really struggle to find smaller maps/modes from the core game that will fit in well with the DLC or you do what the OAP's seemed to do and play the same 4 maps repeatedly, which on maps the size of a postage stamp becomes boring almost instantly, especially with no variation in game mode.
The Premium pack i'm finding alright, don't care about the strategy guide or the video's, but it means I no longer make any decisions about DLC, i've paid for it now, so it's done with. I do also really like the assignments, it gives those of us who have unlocked the majority of things in the game something to work towards (although I still have a LOT of attachments left to go). If it wasn't essentially the only game i've been playing and intend to play in the near future I maybe would have skipped Premium and the COD DLC and just bought the other DLC's that I know i'll like....but I know for a fact i'd always be wanting a shot on those new guns (even though they're nothing special) and I wouldn't know how much fun i'd be missing on Gun Master.