The tour was organised smoothly and delivered exactly what it claimed. The driver gave a complimentary narration on the way to Flattop, but we were at the back of the van and missed most of it as there was no speaker system - can't really complain as it was not part of the deal. The hike is unguided, as was clearly stated in their web site. They gave you clear written instructions to follow. In reality, it was quite hard to get lost as there were so many hikers on the trail. If you want, you can download a trail map from Alaska Department of Natural Resources. For the last part of the hike, we were literally on our fours and it did take an effort to get over the edge. You do not have to summit if you are not up to it - it is the same way back to the parking lot. The scenery up there was rewarding. Make sure you get to the other side of the top for the breathtaking views. Wear shoes/boots that have good grip - the trail was quite slippery even though it was a sunny day. A walking pole could be very helpful - they had a few to borrow.