Look at how it asks questions
The first conversation shows the difference. Reliable firms ask: how many stores, is the unit profitable, who are the customers, who are the competitors, what have you done before. Unreliable ones ask what style you like, your budget and how many options you want. The first is learning the business; the second is taking an order. The more specific the questions, the more the proposal will fit your reality.
Look at how it talks about implementation
Brand plans end up on storefronts and shelves, so check whether it cares about execution. Does it ask about store area, construction conditions and budget limits; does it proactively mention construction drawings and acceptance standards? A firm that talks only about creativity delivers a pile of files. Those willing to discuss materials, schedule and acceptance can stay through opening.
Look at the depth of cases
Do not judge cases by pictures alone. Ask: what was the problem, how did the plan solve it, what changed after implementation, what did not work? Firms that can explain the process can usually explain your project. Case count matters less than similar category and stage — visit a store that is already open.
Three checks before cooperating
First, discuss needs and see whether it understands; second, see whether its direction shows judgement rather than flattery; third, discuss scope and quote and see whether it is written clearly. A large firm is not automatically reliable, and a small one should not be excluded. Start with a small pilot — one store or one packaging project — to test the working style.

