It's a shame to give this a rating of "average" in some respects, but this was the average score for one-of-a-kind views combined with poor and even dangerous handling of the excursion.
FIrst of all, it's worth noting that this is a tough excursion. Even if you're relatively fit, unless you specifically do lots of mountaineering, you will find this 7-hour trek very challenging. Keep this in mind...
So this is a full-day experience: an early morning departure takes you to the national park to see the Perrito Moreno Glacier from a viewpoint across from it and take photos, after which you take a short boat ride to where the 7-hour day actually begins. The glacier trek itself is around 4 hours, but the rest of the time is spent hiking in the adjacent mountain to get to the point where the trek begins, and then back afterwards.
As you can see, it's a full-on day. Unfortunately, the only break built in is the 15 minutes you get for lunch: that's it. You'd have thought they might stop every hour for about 5 minutes to get some water perhaps, or take in the view, but they don't. In fact, it's quite fast-paced and if you stop even for a moment to take a photo or two, you then find yourself chasing to catch up to the others.
And don't expect them to make sure you're with the group, either! Before we began the hike into the mountains we were given time for a bathroom break. I was the last one out (we had to queue as there were only so many) and the group had already left without me! I then began the long, frustrating process of running to catch up with them, and in the process doing the hike all by myself. Occasionally I could see a couple of the guides look over their shoulders and spot me, but they just kept going. Then, at one point I lost sight of the group - and could not figure out the path. There were two directions I could have gone: I didn't know which, and there was no one to follow or ask. I ended up choosing the wrong one unknowingly, and I eventually reached a point where there was no where for me to put my next step. I could make out a spot for my foot about a meter away, and in between at shoulder-height there was a rock I could use to grab on to. Just as I was about to put my weight on it to reach the other side, the rock gave way and slid down the mountain, and I almost followed. Luckily my scream was heard, and someone came to my rescue to help me back on the right path.
How irresponsible can you be to organize a tour of this nature and leave people behind on their own? It seems obvious to me that you should have a guide that follows the group from behind to ensure no one is left. And, to add insult to injury, when I reached the point where everyone was getting their grampons and putting on their harnesses, I naturally sat for a moment to catch my breath and slow my heart rate after my recent fright. Rather than being given an apology for leaving me on my own, one of the guides had the audacity to say to me (in Spanish - I translate) "Do you think it's right that while everyone else is harnessed up and getting a move on that you're just sitting there?" At this I replied (again in Spanish), "Do you think it's right that you all left me on my own to hike the mountain where I almost died as a consequence?" And the only response I got was a throwaway remark along the lines of how I should just look at the view...
The guides weren't all very talkative and friendly. The primary guide was informative, but you could see he was disenchanted with his work and it showed in the way he conducted himself, almost doing the tour reluctantly. At one point I asked him if he realized how special it was that he got to see this every day... he was simply unimpressed.
The sights, however, are really magical. It's one of those once-in-a-lifetime (at least for most people) moments that I am so happy I had. Certainly one of the most beautiful, awesome, inspiring things I've seen. It's just a shame that Hielo y Aventura have the monopoly on the glacier trek, because a bit of competition might actually get them to improve their service. I don't honestly know what all that money (it's an expensive excursion) is for, aside from the equipment and transportation, because for much of it, the guides might as well not have been there.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.