I've recently been exploring the Cobalt Profiles, having purchased the Basic Pack, Canon Digital Emulation pack, and the Fuji Film emulations pack. Nice to have all these options, greatly speeding up my color workflow. Note that there's also a Cobalt Colors which you can download for free once you have the basic pack, and for me I like that as a general default (better than the Adobe Color default). My most used for landscape photography (with my Sony A7RV) are the various Canon Digital Colors (always wanted these instead of my Sony Colors) and the Fuji Provia Film emulation. Each have their idiosyncracies (for instance the Canon Colors make all water too blue, and the Provia adds a magenta cast which is sometimes great but sometimes not desired), but they are are super useful starting point for most of my photos. Very happy so far, and trying very hard to resist buying more packs!