This product is definitely a beast. But, it's a FUN beast that isn't as difficult as it appears. I tried out the old TSR paper fold-up kits back in the day, and was disappointed. They don't compare to this product at all.
The instructions included are very good, and I didn't see any errors that the original reviewer mentioned. However, given Fat Dragon's response to their customers, it would not surprise me if the error had been corrected in the week or so between when that review was done & I bought the kit. The only change I would recommend comes from another customer - to make the side walls' supports vertical instead of horizontal. This does seem to give a stronger result.
I did end up with a little bit of warping along the towers, probably due to my inexperience. Still, I ended up with a very nice kit, despite being a novice in the hobby. This would be just the screen to DM long campaigns or games at conventions.
[5 of 5 Stars!]