Buy Side Representation - Whats the true value and what creates the best outcomes?

First time posting. I've read all of the threads on this topic but most of them are a bit dated so I wanted to get current thoughts of the community. I am a self funded, first time searcher who is very committed to my search BUT will remain in my day to day job due to stage of life and family obligations (kids in college). I'm clear on my range of targets, financial metrics, etc.. but DEAL FLOW is the limiting factor at the moment. I'm willing to pay for professional help sourcing deals but curious around what the community thinks about... 1) What are realistic expectations someone like me should have for buy side representation? (ie. metrics around increase in deal flow, what do you get for your money?) 2) Are there firms that are particularly effective at this by taking a different approach with tech, dedicated sourcing resources, etc...? 3) Anyone have experiences to share (positive or negative) that were in similar situations to me?