It's simple interface makes it user friendly when you have limited knowledge about procurement process which can be quite overwhelming if not done correctly from first time buyer perspective.
I would like more options in terms of filters so as we could narrow down our search results faster than using drop downs or text boxes. Make sure your organization has an internal team who will guide you through this whole journey with clear instructions on how things work at every level within the org structure. The benefits are many but most important benefit is increased transparency into what goes out vs what comes back in and overall efficiency.