They feel like they fall into more or less in the same category as they don't really seem to have a lot of indoor activities is what it lacks, especially if you're wanting your sim to stay at home on their lot.
Probably just a slight step above Island Living with the lifestyles that offer gameplay that's not just tied to the world. I do like seeing sims hiking/jogging together just wish they could do it elsewhere as well.
Island Living:
Tanning
Sand castles
Snorkeling
Jetski's/Boats
Mermaids
Kava Bowl
Festivals
New Career/Oddjobs
Snowy Escape:
Lifestyles
Mountain Climbing
Hot Springs
Snowboarding/Skiing/Sledding
Hot Pot
Hiking
Festivals
New Career
Any noteworthy gameplay to the packs. :V I'd wait for a sale. The build/buy modes as well as CAS in these packs are aesthically pleasing and love them, but they still fall short of being a full EP like other EP's thus far in S4..