I don't have personal experience with the AKL sleeper sofa. But at BWV my sister slept 10 nights on the sleeper sofa and was very happy about it. I just tried it out briefly but felt comfortable as well. I think those aren't sofas which can host a guest on the odd night, they are built to function as a bed regularly. Of course Kidani would also give you one more bathroom if that is of interest to you. Personally, I prefer the amenities at Jambo (counter service restaurant, pool not across the street) but a lot of this is personal taste. However, I am not sure whether the person you rented from would be willing to change your reservation now it has been made anyway.