I have a few hundred hours in Cessnas, mostly in 172s. They glided quite a bit better than my Cherokee. The worst plane in regards to glide ratio that I ever flew was a 1969 Yankee. It was a fun little plane but it had the glide ratio of the Space Shuttle (pre-flare). In that plane, you'd better be high or very close to a good landing spot if you had to glide. Otherwise, you aren't going to make it.