The Moorside Inn: Contains new idle markers (some specific to certain characters), a bench at the far back, and a letter located on Jonna's side of the bar.

Thaumaturgist's Hut: Contains a letter on the shelf on Lami's side of the counter.

Jorgen and Lami's Home (outside of it): a bench as been placed that is linked to some of the new schedules.

Morthal Jail: Benor's bed from the Unofficial Patch has been carried over with its placement intact. A small table has been added with Benor's favourite books, a quill, an inkwell, and two journals. There is also an old letter that has slipped beneath the bed. A wall basket adorns the wall just above the side of the bed.

The Windpeak Inn: Changes the ownership of Alasan's sleeping spot to be his entirely. This was done to stop certain people from sleeping there while the poor kid looked on helplessly.

Nightcaller Temple: Erandur now has a journal, bedroll and a knapsack filled with his favourite books. There are new idle markers placed so that Erandur can read, sweep and pray.

Nightcaller Temple (outside): A schedule-related bench has been placed.

Frostmere Crypt: Eisa abandoned her knapsack in her haste to flee the crypt. Be sure to check out her favourite books, snoop into her correspondence, and peruse her three journals.

Morthal's Graveyard: Idle markers have been placed by some of the graves. They are used in certain schedules.
Falion's House: Adds a letter to one of the tables.

Solitude Lighthouse: adds a letter.

High Hrothgar: adds a letter. (Somewhat hard to find in-game, since it tends to clip through the surface I placed it on.

Whiterun: There are idle markers placed around the city for some Elite Guards. (They have dialogue with Eisa.)

Whiterun Guardhouse: Elite Guards initially spawn here, hence the cell edit.

Hjaalmarch: There's a shrine and statue of Mara along with a bench out in the marsh. There are also many idle markers used by Eisa and other characters scattered throughout the marsh. Map view with location of the shrine:

Kjenstag Ruins: Eisa sleeps on a bedroll here when she goes through her Morthal schedule.

Near Dawnstar but not terribly close: Most notably includes a bench (used in some schedules), a broken table, some other broken bits along with some books, a lantern and empty drinking vessel. An altar placed nearby offers some interesting viewing. There are some idle markers in the area as well. Map view of the location I like to call the Snowberry Sacrifice:

Extra image of the surrounding area for those seeking further compatibility revelations:

The Pale: One of the bedrolls at a bandit camp along the shore had its ownership changed. Eisa sleeps there whenever she goes through her Dawnstar schedule.