U-Save charged me more than $1,300 for damage that apparently occurred after hours on their own insecure lot. (A local auto body shop quoted me ~$300 for the damage--U-Save took the car to a shop 25 miles away). I dropped the car off in perfect condition at about 11pm, then got a call 36 hours later asking me to file a damage report. They had no proof that the damage occurred when they said it did, and even if it did occur when they claim it did, why did they wait so long to notify me? Two months of persistent questioning got me nowhere; U-Save charged the full sum to my credit card. You might save $15 or $20 a day on your rental, but you might also get charged an exorbitant amount. Stay away.
Pros: Cheap (at least on a per-rental basis; watch out for the random $1,300 charges)
Cons: Absolutely deplorable customer service; deceptive practices