Pros: Upscaling to 1080i on HDMI-out from all sources, price, features, ins/outs, interface
Cons: possible HDMI-issues, hiss during quiet scenes, limited Zone-2
The remote layout is very nice and easy to use while watching or listening. Quick access to all of the Dolby filters or listening modes through "Movie/TV, Music, Game, Stereo" buttons is very handy for me since I'm using my media center for all of the above. In addition, each source can be assigned a default listening mode so that switching to that source automatically selects the mode.
The menus themselves were easy for me to navigate and edit settings with, but I believe menus to be more of a personal preference thing, so I will not go into more detail than that.
I set the receiver up manually, but it does have Audyssey EQ for automatic setup.
I have zero issues using the Onkyo to listen to music: It sounds great at any comfortable volume level, and I've just never tried any louder. All genres, from acoustic string and piano to rock and roll to electronic and dubstep, sound pretty darn good for $110. Even for $200.
Daft Punk, Jimi Hendrix, the Beatles, classical and jazz piano, The Glitch Mob, etc.
While watching movies, however, there can be a mildly distracting low-volume hiss during quiet and/or dramatic scenes. This may just be an issue with my receiver being pre-owned or with my sub-par PC sound hardware. For the price, this issue is totally acceptable to me and I just haven't worried about it.
A more common issue is the HDMI-board failure, totally disabling the HDMI ports. The board can be replaced fairly easily, but I bought mine pre-repaired.
One big downside is not being able to play digital audio over Zone-2, or control the equalizer settings to this zone. This makes it impossible to output music from my media center over HDMI to zone 2, which is unfortunate.
Overall I am quite happy with this receiver, especially for the price.