Have used GLG for diligence and also for market research. They have exceptionally high-quality experts, and it's easy to screen options with screener questions and then choose only the ones you need. Some of the top investment firms and consulting firms utilize GLG for their expert network
What do you dislike?
Their primary target customer are the top-tier investment and consulting shops -- and priced as such
Recommendations to others considering the product
Structuring your screener questions is definitely the key to getting the best experts for your market research project. Their existing network is very accessible and has a fast response-time.
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