My first Wii's DVD drive started to sound like a small turbo-prop in my living room so it went off for repair. The repair service was exceptionally well done, however, so no gripes there.
I will say that my negatives on the Wii are the amount of shovelware that keeps coming. I know the box is capable of clean, smooth motion controls but some games implement it poorly. Other games just plain suck.
I'm looking forward to some good software on the horizon, but if third parties don't get it together and release some AAA titles on the Wii, my daughter is going to grow tired of it and it will be gone... She spends about equal time on the 360 at this point and there doesn't seem to be anything on the near-term horizon she is interested in (besides Okami and Kart)
I hate trolls.

Systems I currently own: 360, PS3, Wii, DS Lite (2)
Systems I've owned: PS2, PS1, Dreamcast, Saturn, 3DO, Genesis, Gamecube, N64, SNES, NES, GBA, GB, C64, Amiga, Atari 2600 and 5200, Sega Game Gear, Vectrex, Intellivision, Pong. Yes, Pong.