I'm getting ~20-21 MPG w/ the 6-speed. However my commute to work is about a half mile so i am very satisfied with what i'm seeing (was getting 12-13mpg in my Taurus). Even non-commute driving, I normally don't have a drive much greater than 3-5 miles away so my MPG is based on almost no highway driving and a fairly heavy foot.
I did buy the Compass "out-of-town" and saw about 29 mpg between the dealership and my house. This was on I-75 with speeds around 75mph.
I will say that the smaller gas tank does lead to some frequent fill ups though. My wife's Escape has a pretty small tank complained about frequent fill ups.
2017 Jeep Compass Sport - 4x4, 2.4 Tigershark, 6-speed manual, Laser Blue
2013 Ford Escape SE - 4WD, 2.0T, Magnetic Grey
1984 Chevy Camaro Z28 - 5.0, 5-speed manual, posi rear
2011 Ford Taurus SHO - Unleashed Tune, H&R lowering kit, Voxx Black Wheels, Blacked grill and trim
2012 Chevrolet Sonic LTZ - Trifecta Tune, 6-speed manual, Eibach lowering kit
2007 Grand Prix GXP - Trifecta Tune, Flowmaster exhaust
2009 Pontiac G5 - Trifecta Tune, Magnaflow exhaust