Initial impressions: I just received my Knotty Topper and I've vaped a thin layer on the screen, so bear with me. First off, this thing is HUGE. Set up, it's about 4.5" x 1.5", with a bowl barrel that's about .75" in diameter and .75" deep. I'm not sure how much it can functionally hold, but it's a party bowl for sure. Fortunately, it'll still function well with a single layer. I have the screen laying across the bottom of the barrel of the bowl, suspended on a ridge. It stays in, but it's not super tight and may not hold as is after it wears. If you're adventurous, you could shove one down in the bottom and gain room for another .5 gram or so!
I am tasting some wood, but I expect that will lessen over time. Vapor is flavorful and plentiful. Function is simple and straightforward. First impression is that it's like other O'Connell vapes: big bowl, easy to use. I haven't pushed it but I don't feel it'll be any more susceptible to scorching or combusting than other OWW models. Otoh, a full bowl's a half inch closer to the flame....
Based on my initial use and its similarity to other models, I'd recommend it for its ease, production, and flavor, especially if you need a bowl to pass around.