If it helps, I have a Kenwood kdc-bt55u, and like it quite a bit. It has a few annoyances, mainly that it doesn't remember the color settings when the battery is disconnected - which is silly since it clearly has some memory capabilities (it remembers Bluetooth pairings just fine), so every time you disconnect the battery it goes back to rolling colors. I liked the appearance, since it's not as flashy as other designs, though optimally I'd prefer to have a single DIN unit with a touchscreen, so it would blend in better when the car's turned off, but I haven't seen anything like that lately.

I have Rockford Fosgate Prime speakers - again because they are not flashy, and because they have flush mounted tweeters with a minimal front-mount depth, which means they fit under my stock speaker grilles. They sound pretty good, but since I'm limited in speaker size, they are lacking on the midrange to low end.