it's worth while to review police reports for areas that interest you. There are some noise problems with Bands (and dogs -easily solved with a sonic gun). You'll want to know if you're looking at something in the middle of an all night party zone.
People who live in the friendly St and City view areas (SW Eugene) have told me it's fairly high crime -your house WILL be broken into. Just South of Amazon expressway is beautiful and 'in the hills'.
If you love to garden, there's many problematic clay areas in the SW hills so be aware of drainage issues even on a hill, and there's plenty of 'cute' but destructive deer also. another issue people don't mention is that ice can prevent you from leaving your house if it has an angled driveway, People on the hills miss days of work because they can't navigate their own driveways. Ferry St bridge area is a bit low, but probably has nice parts if you like flat land. Eugene receives to much of the Springfield lumber mill stench, even down towards the 5th street market which is a nice area but also has the loudest trains of any city I've been to. The hills around the campus are nice but abandoned cats are a problem, also cougars prey on the abandoned cats in the Hendricks park area. Eugene gets the Springfield mill town inversion at times and it's nasty. When the grass burn up north starts up around june/july the air is really really bad, hopefully grass burning will be fazed out soon.. about 20 minutes out of town is nice, it's a little sunnier and the air is clearer but it runs colder at night, It can take 20 minutes just to commute across town because of all the lights and it's more frustrating.