Thanks. Experiment is the best way to judge whether it suits or not to you ! Travel one way and check it out. In 2 CC it is 3 x 3 seating, and in EC it is 2 x 2. EC is much better, and certainly has more leg space than 3 x 3. Perhaps you could compare the Volvo prices and check out the EC prices. If they are same or similar then try the Shatabdi ! It's upto you.
good wishes.