I skied in St Moritz on Friday, 16th March 2018. I stayed in Chur. Travel time by train was 2 hours. I bought the half day lift ticket at the (expensive) price of about 60 euros. However, the most expensive turned out to be the ski equipment, which I rented from the shop underneath Corviglia gondola and costed 55 Euros! Despite the so expensive rent rate (the most expensive ever!), the equipment was not good, as the bindings fell away and they fixed them in their shop up in the mountain. This did not take more than one minute, but what would I have done if this happened while skiing? The main ski center above the village of St Moritz is Corviglia. It is a nice ski center, mainly with red slopes. On Friday, 16th March 2018, the weather was perfect. Thus, it was sunny, not at all windy with very good visibility. There was about 1 1/2 meter of snow in the ski center. The snow quality was good, in general. In the sun exposed slopes, like for example slope no 4, the snow was soft and not good, but the snow in the slopes in the back part of the mountain (for instance no 16) was hard and good for fast turns. After skiing the blue no 6 and the red no 4, I took the Pitz Nair gondola, then skied the red no 16 and the red no 34, then took the chair de la Pesch, then skied the black 18, which was challening, then the red no 10 down to the lift Gluna, then I took Gluna and skied down the blue no 20, the red no 31 and the blue no 21. Afterwards, I took the plateau nair, then I skied the red no 7 down to Corviglia gondola.
It is a beautiful ski center, recommended to have fun and enjoy nice view over St Moritz village. However, be warned: it is really expensive, meaning that you can find the same good quality with better prices in other ski centers of the Alps. I would not recommend staying at St Moritz as it is really expensive and, in my opinion, it lacks in charm. Instead, try Chur, the most ancient city of Switzerland, the old city of which is really interesting.