The trip itself was spectacular and would highly recommend it!
I was traveling solo during this trip and thus paid higher rates, but that said I generally still believe the tour was pretty expensive compared to quality of the hotel and travel arrangements. I believe more economical rates could be found locally.
Most notably the Perito moreno is worth seeing, but organisation of the trip could stand to improve
The hotels, we booked 4 to 5 star hotels, were far below the standard. The hotel in El Calafate was OK but was 3 Stars, the hotel in El Chalten was far below the standard, and was, looking at the rating close to 3 but far from 4. We will not book via Viator again, they can not guarantee the hotel which was booked, and book other hotels which are on the "same level", which we feel is not the case. We enjoyed the trip, all people we met were great and helpful, but the hotels were not what we booked. It did not interfere with our overal enjoyment of the entire trip, but it was anoying, spending money and not receiving for what you paid.