Based on my experience, their primary expertise in app design. They are very meticulous and thorough on their processes specifically on discovery, business requirements definition, feasibility and actual design work.
What do you dislike?
I guess because they are in-demand, we were put in backlog for three weeks.
Recommendations to others considering the product
I've worked with them in custom development projects, which they are very good at. Not sure about their expertise on other areas.
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