Thus far my fiance and I have tried a variety of wedding cupcakes from 7 different venues; I'd say that Bloom definitely outshines the rest.
However, while I prefer moist, dense cupcakes such as those found at Bloom, my fiance tends to prefer a lighter weight cupcake with lighter, whipped frosting (more like Daisy's Cupcakery). Needless to say, it was not his absolute favorite but was impressed by their creativity, professionalism, and use of local ingredients. The winning cupcake for me was the all natural heavy vanilla and he gave in to the chocolate ganache. He remarked that the heavy vanilla was too sweet for him.
Unfortunately they don't fit into our budget (and it's killing me!) so we have to go with another venue. But if you don't plan on having a lot of guests and/or your budget is flexible, I'd definitely recommend setting up a consultation with them. I believe it's $3.25/cupcake for specialty flavors and $3.00/vanilla or chocolate cupcakes (they estimate ~1.5 per guest). They're very accommodating and willing to try any new recipes per the bride's request (particularly for allergies or intolerances). The wedding consultant that we met with was very warm and friendly. She brought photo albums from various events they catered for which was very helpful.