Had a very similar experience with "lexus51". Our tour itinerary also indicated A/C Deluxe Houseboat only to find ourselves in a dirty and grimy rice boat. Totally different from the beautiful pictures we saw in the promotional website. We too paid a hefty amount for 2 large prawns which we had for dinner. Likewise, there were constant power failures and we had to sleep with mosquitoes. We felt ripped off but the good thing was that the captain, the cook and the mechanic tried very hard to make our stay pleasant. Thanks to them. Had the boat been cleaner, we would have enjoyed the fantastic scenic backwaters which is actually quite awesome especially at sunset and sunrise.