Travellers should be aware that Intrepid's policy gives limited refund for changes to itinerary within 56 days of departure - in my case, I received no refund.
I booked my Rome to Paris trip as a single traveller. When my partner subsequently joined the tour, we were told that despite paying the upgrade fee for the second person, there will be no refund for my single supplement (a fee of AUD $720 to guarantee a single room). The policy on refund applies regardless of whether it is an upgrade, a change in the destination or a change in the travel date.
This is extremely unfair. On the one hand Intrepid charges us for two trip fees and a single supplement, on the other hand they keep the cost savings from providing one double room instead of two single rooms.
Intrepid's policy is inconsistent with other travel companies. My friend is travelling with Trafalgar and he got full refund when he changed his Egypt tour last minute. Intrepid may appear cheaper at first, but your trade off is losing the flexibility of amending your booking.
Based on my own horrible personal experience, I am warning all my family, friends and colleagues about the "fine print" and recommend they NEVER use Intrepid.