My friend and I stayed 4 nights in Kerala - Munnar, Thekaddy, Aleppy houseboat and then a day in Cochin. It was well organized and easy to arrange with Iris holidays. We were greeted at the airport and introduced to our lovely driver Prince. He was always prompt and accommodating to our plans.
All the hotels were great and as expected and the night on the houseboat (Xandari) was a highlight. Would definitely recommend going through Iris for a trip in Kerala