I don't have a lot of complaints about Avis, in fact I usually do quite well with them. Great corporate rates, etc. And I am renting enough right now to see the periodic upgrades, etc. What I'd like to see change ties back to Rental Reward Days (or other mechanisms of earning a free rental). In particularly, I was looking to rent a minivan on a family trip and called reservations for assistance. My intent / interest was to use multiple 'free' days to cover the rental for a weeks time. Unfortunately, I found that only one reward day redemption can be used per rental. So much for that idea! Yes, I thought about setting up a series of rentals to cover the trip, but that would be pretty inconvenient to follow-through on while on vacation! The change I'm interested in: Migrate the Rental programs to be more in line with hotel and airline programs... So you can use your rewards in any way you like - with some room for blackout periods, etc. I'm not a fan of blackout periods, reduced availability, etc... But would see a concession like this helping to transform the current model. Alternately, I'd be interested in using Rental Reward Days to upgrade the class of vehicle for a rental period... As is, I have a stack of rentals available and no reasonable way to use them - as it fits my current needs. What else haven't I considered?