I also was shopping for a dolly. I looked at them all ...needed to tow a 2013 prius...allmost bought an acme after reading all the posts about it. I found a company "American Car Dooly" on craigs list selling a new dolly for $1340 delivered with electric brakes. I went ahead and bought one...it was delivered the next day. It was easy to load and tie down the car. I towed the Prius on a 2000 mile trip for 34 days with no issues. I am very happy with the purchase.
Take a look at www.americancardolly.com or call 888-281-4391 and talk to the owner