My two cents worth having just played it last Saturday on my annual US pilgrimage.
Really enjoyed the course, played it in the second hardest rain I've ever seen on a golf course. If you told me that 8-10 inches fell during my round I would not be at all surprised as the course marshal came out to me on the 15th hole to ask about ponding which there was plenty of. Also plenty of wind. This all made me feel quite at home there. Visually there is a lot going on at TR most of which seemed to me to not interfere with the golf experience but add to it. I agree with the guys that blind shots are the norm in the UK, Ireland and The Netherlands so I enjoyed finding them on a US course. I guess it's quirky given the nature of these type of holes, especially in the greater Pinehurst area (at least based on the courses I had the opportunity to see).
I did have the opportunity at the start of the day to experience how perhaps the average golfers would fair. I was in the second grouping and we waited 20 minutes on the first tee while they all searched in the long grass for their balls not having cleared it through the gap. I agree it's a course a caddy would do wonders at. Two mentionable points there. Nobody in that first group should of been trying to play from the back tees, no caddy and if they were playing from the back tees should of laid up and played the hole as a 3 shot hole. Perhaps wise decisions are for mid to low hcp'ers. In my group there was a father from LA and his sons, one a 3 hcp the other an 8 and dad a 10. All three lost there drive as well but all 3 tried to hit through the gap. Again hard rain and wind in our faces. I got lucky with a decent drive but still had to lay up before the second shot.
After the first hole took 30 minutes in the hard rain I excused myself and played through the first group on the second hole as I had another round to get to at Pinehurst #2 in the afternoon. I was off and running and had taken a cart given the conditions and not having brought an umbrella with me to sun country.
I though most things on the course were pretty self explanatory, even with no caddy, I did have a yardage book. However, I did have a couple confusing moments so understand how this could affect others as well. I think I would push that off onto conditions. I think it was the second par 5 on the front 9 I ran into some trouble, I'd been playing the back tees, came around the corner and saw a tee box on the right, quickly checked the yardage book stepped up and hit my drive which I thought was really good. Then I drove up there to find I had hit through the fairway into the trees but only had 100 yds to the pin which was up on the side of a hill with deep bunkering on the right side and heavy rough on the other. I couldn't figure out how I hit the drive so far so drove back to find I had played from the women's tee which had a similar marker to the back tee. My bad. The approach to that green from the fairway is really very tough in my opinion. Perhaps one of the toughest. That ok but the rough I don't think should of been there. Bringing about another point, I think the deep rough so close to a good shot makes even a short approach with a wedge too exacting in those circumstances. I struggled with it but can't imagine how it would of been for that first group out. I imagine they didn't finish the hole. Great if you play it matchplay but the average golfer probably doesn't do that. Where as many on GCA would I'm guessing. The average guy finds it unfair, where as we might not mind a couple holes like that.
I'd go out on a limb here and say TR is the Castle Course of the Pinehurst area. Almost to a tee. It doesn't in my mind matter if you like or dislike the Castle Course or see it as a missed opportunity it's there and adds highly to the experience in the area being something completely different, a bit risky in terms of architecture and "must see" if in the area for a while to play several rounds.
Even in the hardest rain I still enjoyed it especially the final stretch of holes which all would be among my favorites there. Which I guess is 13 - 18. 13 reminded me of several links holes I've seen before with the almost hidden approach to the large punch bowl. I think I'd rather see that entire section shaved down so you could play the ball of any side as long as you could get it into the bowl. Now there is high rough, but that's only a maintenance preference.
The elevated par 3 over water I thought was a great change of pace I didn't expect and a tough shot into the wind. 16 I would only again have them cut down the rough slightly as I imagine that making the hole a struggle for many players. The blind drive on 18 was also interesting.
Someone commented on the par 3's. While I liked them all as individual holes and there are different visually. Most played almost the same in terms of length, or very close. Also if memory serves me all were from an elevated tee to a lower green. I'd ideally like more variation than that as well. But again they were 4 fun holes to play.