Thoroughly satisfying. I am definitely seeking out the rest of Shea's fantasy work.
Nifft and his partner Barnar are true thieving professionals, and the stories come off as (mostly) planned heists by mutually trusted, reliable, and exceedingly competent partners, recalling the relationship between Fafhrd and the Gray Mouser.
Shea's unnamed world owes much to Jack Vance and the Dying Earth series, particularly Eyes of the Overworld. Where Shea's follow-on to Eyes, A Quest for Simbilis, felt constrained by an adherance to Vance's style, here he goes his own path in both characters and setting and it just feels more natural.
I wound up enjoying every part of this book. Even the framing device, commentary by the scholar/historian Shag Margold on the provenance and background of the various manuscripts, is entertaining in its own way, and it does smooth over--or at least hang a lampshade on--the different styles between the stories.