In 76 while the system is similar to Fallout 4, I feel the UI is much cleaner and easier to navigate. It is still the same right to left system but the extra step of having to go into the items then into what you want is gone. Now you go to, for example sake, the structures tab and it is split into basic things like Foundations, Wooden Walls, Metal Walls and Cement Walls. However once over say the wooden walls you have to scrolls left and right to move between solid wall, window and door frame. I personally like this a TON more. Oh and windows have shutters on them now that you can open and close. Things like couches, tables and the sort are also the same way.

Update: Here is what the settlement menu looks like for those that have not seen it.

Exploration in 76 is a lot of fun surprisingly. The world feels very lived in surprisingly. For my first example of this case I will use a coffee shop I found during the last BETA session. When I saw it at first it was easy to tell what it was due to it having that 50's vibe to it. The window out looked onto the street and you could see the nearby river. Near the window was a table and on the wall near to it was more tables with various coffee cups. In front of the doorway was what you'd expect from a coffee shop from that era, a bar near to the staff area that had your usual bar stools with more mugs sitting on the counter with some newspapers on said counter.

Another case of this was the Charleston Capital Building. I went in expecting something basic but left never wanting to come back. Upon entering for the first time there was a couple of Mister Handies floating around, I had entered through the DMV area. Again like the coffee shop think "generic 50's DMV" with benches lined back to back in several rows. In a few of the benches were the remains of humans, as bad as it sounds I found this somewhat funny. Moving on to the more of the actual location though if you make your way to the counter you too can get a ticket number to wait with the dead. The building itself other than the DMV area was rather ruined, but don't worry the 20 or so Feral Ghouls can come and welcome you to their home. Expect your weapon(s) to break, you to run while dodging holes and running through ruined offices past desks to simply catch a break. My advice is to fall into the sub levels and make your stand that way.

As for griefing I had only a single "negative" experience with a player that followed me around for a couple minutes just wasting ammo trying to get me to fight back. Eventually with the dude following me I just went near to Super Mutants and the agro went to the dude following me. So that was that. As for my overall player experience, it has been really positive. Have had plenty of interaction with people not at towns, but surprisingly my own C.A.M.P. It seems that if you build it relatively close to a key location (river, major location, forest w/wood) people will congregate to the location (somehow, your camp doesn't show up on the map). I can already see people building hotel type places with their C.A.M.Ps and I might actually do that and blueprint the building.