This has pictures of the cas and build mode items
https://www.ea.com/en/games/the-sims/the-sims-4/buy/addon/the-sims-4-adventure-awaits-expansion-pack
I was on the fence about this EP too, and I won't lie the CAS/Build/Buy did not sway me at all (but I did find a great female long braid hair I am in love with). I don't play families, kids, and really don't plan to use Getaways.
But I love the butterflies (swayed reason I got the pack), Entomology skill (has some cross pack perks Seasons Bee Box, ECO Insect Farms, and you can catch flying OR Insects with net and all gain the skill (regular catching and viewing OR insects do not though)).
Crystal Valley you can "Pan for Crystals" in ponds/water of the appropriate depth, get crystals and gain Gemology skill. Which has been a nice perk to the pack/world.
And Custom Venues have so much potential, but some some activities with objects have been reported to not be working (like Seance Tables, Apothecary Tables, etc.), and some activities are also reported missing (like no Archeology Table activities).
So you could wait for fixes and/or for it to go on sale. Unless you really like the idea of Custom Venues, and playing with that in the mean time (it has been fun despite finding bugs).
HollownessDevour thank you for your reply! I appreciate your feedback, especially about the Entomology skill. Also about the bugs that have been reported! You know, the OTHER kind of "bugs", too! *Shakes head, we can't have anything without them of course! LOL*
