Hey Wardy, I played a couple rounds at Congaree about a month ago. Generally, I saw a lot of the slopes around the greens and off fairway areas as giving the course playability. I was the high cap in our group, with a couple single digits and a +2. While we all played the course differently, I certainly played it a lot differently than the others. There were a lot of holes where I kept myself in it because while those guys tried to stuff it at the pin, I relied on my putting and the bump and run to use the ground to get the ball close. Getting the ball near the green was enough to take out my putter or 9 iron and roll the ball close to the hole. When my tee shot was off (which felt like a lot), I had a play with a low running shot that put me in the ball park to scramble for par, or I simply had a shot to the green in a bunker or in the native areas.
One example that comes to mind was the Fourth. The pin was on the front right both days, so everyone in my group but me went for the pin on the approach by aiming left and having it roll down to the pin. Being 150 out, I still hit a low running shot up the left side that ran around the bunker and down the hill. It was a safer play but those that want to take the center bunker on before the green are still more than welcome to. Being able to bring my putter into more shots helped equalize a lot of the holes with the better players I was with.
On that Eighth hole, they all wanted to tee it way back, so instead of taking on the dunes on the right too much, I went left off the tee, ran my second up the fairway, and had a short/mid iron in, whereas those guys were hitting their third from closer to the green (at least those that nailed the tee shot). A hole like the First, I didn't see the point of even challenging the green side bunker on the right. It felt like carrying meant your ball would then fall left towards the pin, but I wanted to be below the hole, which meant going left of the bunker altogether.
I think all but one of the par 3's were forced carries, but distance-wise they were not overwhelming and there was enough room to accommodate mis hits. On the Tenth, my tee shot went almost half a mile to the left but was pin high and I still had a recovery shot open to the pin.
There seemed to be a lot of ways to play most of the holes. I think it was the Sixteenth, a short par 4 with a lot of bunkers between the tee and green and then off to the right of the green. I think those guys were able to reach the green with hybrids/fairway woods while I just figured I'd hit driver and rely on my bunker game from there. I ended up winning the hole by hitting my second shot close to the hole while those guys couldn't get their birdie putts to drop.
I didn't think most of the terrain was set up to repel shots though. There usually seemed to be a high side and low side, so I just tried to figure what the ball would do once it landed. Same thing with the greens. There were definitely spots around the green where recovery shots were very difficult, usually when the green was running away from you and you couldn't putt.
With all of this said, I thought it was a challenging course. I thought the slopes, greens, possible recovery shots and firm/fast made it fun yet tough. There were a number of times I was off green and had to figure out how to negotiate the speed of the green and/or bunkers.
It certainly is not a minimalist course but I felt it played like one in many ways. I agree about the greens as well. It seemed everyone in my group missed an inordinate amount of putts of less than 5 feet but I assumed that was the speed factor.
I also enjoyed that it was very difficult to lose a ball, leaving a chance to recover most of the time.
Hope my random thoughts help a little.