I had a great trip with Alpine. The operation was well-organized from beginning to end including flights, hotels, food, gear, etc. However, having now seen the ALE (Antarctica Logistics and Expeditions) operation, I would go with them if I went again. ALE operates Vinson so their facilities are superior and the operators piggy back which sometimes makes you feel like second class citizens (eg, not getting full access to the facilities at Union Glacier). If you have a guide with another company you want to follow, by all means go with them. Otherwise, I recommend ALE.