2000 miles on my '08 Mariner Hybrid and no problems to report. 31 mpg avg with AC on here in Atlanta summer weather. I have the fully optioned Mariner and fully optioned '08 Prius with which to compare. 3500 miles on Prius, 42 mpg avg. Mariner Negative's.. must use a key for everything. Drivers door lock knob annoy's my arm when resting on the sill. Does not have auto window up. Maximum 6-foot length flat objects interior storage (versus 8-foot in Prius). No Homelink. No BiXenon headlights. No Bluetooth. $4,000 more than pkg 6 Prius. No Backup camera. Very much less glove compartment storage space. Rear passanger cup holder is in my elbow way when in use.. expect to elbow coffe everywhere. AC compressor is connected to Gas engine, I see an immedate 2 mpg drop when in use and seldom is the ICE not running when AC on. (Prius AC compressor is electric and I see only 1 mpg drop and ICE runs less with AC on). Positives.. nicely appointed midsize suv and very attractive with very few seen (whereas the Escape Hybrid is a step down cosmetically with black plastic appointments, plain grill and rear bumper). Sound system is better than Prius and 6 mos free Sirius satellite radio is a huge plus. Electric and multi-adjustible drivers seat is ok. Nice moonroof. Nice chrome grill and bumpers. Front wheel drive for suv is ok. Large outside rearview mirrors ok. Rear back up beeping sensors. 110-vac on dash is nice too. Dual climate control. Very nice and shiney wheels. The MMH is nice for driving on my ranch with long gravel roads and in fields and for visiting my construction sites. Has very good ground clearance and saves my Prius for a long life for on road use only. I drive the Prius as often as I can and enjoy the sporty feel around town and use the Prius when on long trips and while on vacations. I also have small and large pickup trucks to take up the Slack when needing to haul large loads. The 450 miles per week I drive did not justify my buying Hybrids, but in my case I traded in older cars for the newer hybrids, spending only a few thousand cash and NO financing. I'm a believer that unless you drive 30,000 miles or more a year that the Toyota Corolla (same size to the Prius) gets 30 mpg with auto tranny is a much better choice if you have to borrow money to buy a car. Please realize that the $10,000 you save with the Corolla will drive you 60,000 miles at $5 per gallon, whereas the Prius will be sitting in the parking lot with zero miles.