Hya
We bought the INdiana last week, taking it out Friday. I'm no new camper, I will give you a review Monday if that helps?
The Khyam harvard is a nice enough tent but quite small in comparison.
What I would say-
We like the polycotton but different tents suit and all that, and so we bought the normal version for less money, if we like it we will sell on ebay next spring (we usually make at least half the money abck doing that- its about timing, early - mid April) and upgrade to the polycotton; if not so good as we thought, can either stick or go to a different model. We paid £199 for ours.
However, other than fabrics the tents are indentical (hey we even have the carpet lol) so will let you know X