The Enchantment Emporium - Tanya Huff
The book deserves more than two stars, but I can't get past my unmet expectations. I'm not sure why, but I expected a Diana Wynne Jones style magic for adults. The Enchantment Emporium has its own style. If it suits you, the book is definitely more than two stars. It has a sharp edge, pop culture references, tangled loyalties and coherent world building.