My opinion... WOW!
Just finished most of the quests in Dragonborn and I think this is an
outstanding DLC.
I have Morrowind with Solstheim (Bloodmoon DLC) and the Dragonborn
Solstheim includes some of the same elements, like the Standing
Stones, but also includes some of Morrowind's continent of
Vvardenfell.
The Black Book quests are very good.
Many of the puzzles are challenging.
HINT: "Nords and Rrieklings are battling for control of the mead
hall. It is under Riekling occupation upon discovery, but can be
overthrown if the player decides to complete Retaking Thirsk for the
Nords."
http://www.uesp.net/wiki/Dragonborn:Dragonborn
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==== Tecknomage ====
Morrowind & Oblivion
Guild Master, Mages & Fighters Guild
Captain of Blades