This is one of my new Favorite modules!
The story is engaging and allows for a lot of roleplay and very diverse combat.
Additionally, it's set in Mulmaster, one of my favorite settings, with appearances by that city's movers and shakers, including Rastol Shan, High Blade Drakehorn, and the titular Selfaril - all intriguing characters.
The story, by itself, truly makes the characters' accomplishments feel impactful on the City and the greater Moonsea area.
The adventure is broken up into four sections. Section 1 is an outdoors combat, Section 2 is a dungeon crawl (I was able to make use of Mordenkainen's Tome of Foes and insert a Rot Troll, which was awesome. Lots of possibilities here. Section 3 is a roleplay heavy section visiting some famous, or notorious characters from Mulmaster including Zora Culkin, Sark Toliver, and a secret group that was the centerpiece of my roleplaying session! No spoilers... And the final section, an arena combat, allows for a VERY tactical arena-style combat. You can seriously make this as interesting as you'd like. I included a Chain Devil in my combat, because I had some very experienced adventurers who needed a stout challenge.
Overall, DDEX2-14 is a fantastic mid-campaign adventure, and an absolute blast to run. You can easily go over time with this one, or trim it down if you want. You won't regret running it though.
[5 of 5 Stars!]